Hicoria, Rafinesque. Name probably derived from the aboriginal or Indian word hickery, or hickory, the common name for these nuts among the tribes formerly inhabiting the Middle and Southern Atlantic States.

Order, JuglandaceÆ (Walnut family).—Native deciduous trees of large size, with compound serrate leaves with an odd number of leaflets, varying from five to fifteen in the different species, the three terminal ones usually much the largest, the lower ones on opposite sides of the rather stout leafstalk. Male catkins slender, cylindrical, pendulous, two to six inches long, three in a cluster, on a naked peduncle or stalk (Fig. 46) springing from the base of the terminal buds of the previous season's twigs, and just below the first set of new leaves in spring; calyx unequally three-parted; stamens three to eight. Female flowers two or more in a cluster, from the end of the new growth of the season, which becomes the common peduncle or fruit-stalk of a single nut or cluster of nuts. The flowers are destitute of petals; stigma short, broad, and four-lobed; husk fleshy or leathery, smooth, very thick in some species and thin in others, partly or wholly four-lobed, opening in some, allowing the nut to drop out at maturity, in others adhering, falling off entire when ripe. Nuts with hard, bone-like shell, round or oblong, smooth or deeply four to six angled, somewhat flattened or compressed in most of the species; kernel two-lobed, oily, sweet and delicious, as in the common shellbark hickory, or extremely bitter, as in the bitter nut.

History.—The early white settlers of the Atlantic States found the hickory nut in common use among the Indians, who gathered and stored them in large quantities in the fall, for food during the winter months, and while our ancestors who sought to make homes in the western wilderness may have appreciated these luxuries, they needed land for cultivation, and to secure it the forests were destroyed, with no thought of preserving trees that would yield food for themselves or succeeding generations. Not only were the forests cleared away, as things to be banished from sight and mind, but as the hickories yielded superior timber for various agricultural and other implements, as well as for fuel, they were often sought for and utilized in advance of the general clearing of wood lands, and the first to feel the woodman's axe.

William Bartram, in the account of his travels through the Southern Atlantic States, from 1773 to 1778, and published in Philadelphia in 1791, says, in referring to these nuts, that they are held "in great estimation with the present generation of Indians, particularly Juglans exaltata, commonly called shellbarked hickory; the Creeks store up the latter in their towns. I have seen above an hundred bushels of these nuts belonging to one family. They pound them to pieces, and then cast them into boiling water, which, after passing through fine strainers, preserves the most oily part of the liquid; this they call by a name which signifies 'hickory milk;' it is as sweet and rich as fresh cream, and is an ingredient in most of their cookery, especially in hominy and corn cakes."

We can readily imagine what a delicious liquid hickory milk must be in which to cook hominy, rice, and similar kinds of grain; and there would be no danger from tuberculosis in this natural product of the vegetable kingdom. Perhaps at some future day, when milch cows are as rare in this country as they have been for ages in China and Japan, hickory milk will come into vogue again and be more highly valued by our people than it ever was by the aborigines.

While we have no romantic tales to repeat in which either hickory trees or the nuts have played an important part, yet we can well imagine that such delicious food must, in ages past, as well as in our own times, have been a coveted luxury, enjoyed at many a social gathering of friends and neighbors. Many a country boy and girl has welcomed the early autumn frosts, because they announced the opening of the nutting season, reminding them of the long winter evenings near at hand, and that the industrious and nimble squirrel was a sharp competitor in the nutting field; consequently, no time could be wasted if a store of such luxuries was to be gathered for home use, or to be sent to city or village market for the benefit of less fortunate consumers. It is to be hoped that this source of pleasure and profit may continue long after the original forests of our country have disappeared, and through the preservation and planting of the noble food-bearing hickories by the roadsides, in orchards, also for shelter, shade and ornament. Valuable as hickory timber and hickory nuts have always been to the inhabitants of this country, we might reasonably suppose that there would be many thousands of these trees planted every year, in order to keep up a supply and make good the annual loss sustained in the destruction constantly going on in our forests. But no such plantings appear to have been undertaken in our Northern States, and only quite recently in the Southern, where the pecan nut is attracting considerable attention, on account of the increase in demand, and the advance in price obtained for them in the markets. Furthermore, with the many millions of dollars expended by the general government to encourage the planting, preservation and cultivation of forest trees, no special encouragement has been extended to the nut-bearing kinds, and the man who plants a cottonwood or worthless willow is given as much credit as though he planted and reared a tree a thousand times more valuable to himself and the country at large.

This may not be a very creditable phase of nut culture in the United States, but it is history, nevertheless, and to attempt to suppress it would merely be encouraging negligence, which has already become so general that the inferior varieties of hickory nuts command a much higher price in our markets than the very choicest did a few years ago.

The nomenclature of the walnut family has been subjected to various revisions by botanists, during the present century, and there are probably others yet to follow in the near or distant future. In all other standard botanical works published prior to 1817-1818, the hickories were classed with the butternut, black walnut and Persian walnut, and under the generic name of Juglans. But in the year 1818 Mr. Thomas Nuttall, an eminent English botanist, who had given years to wandering through our forests and studying American plants, separated the hickories from the older genus of Juglans, placing them in a new one, to which he gave the name of Carya, from an ancient Greek name of the walnut tree. This classification of Nuttall's was immediately adopted by the botanists of his time, and has been observed, scarcely without question, by the authors of all the numerous botanical works published in America and Europe during the past seventy-five years. But now we are informed by some of our noted botanists that, in deference to the law of priority dominant in matters scientific, Nuttall's name for this genus must be abandoned, inasmuch as Mr. C. S. Rafinesque, an erratic Frenchman possessing considerable ability for botanical research, and who came to this country several years before Nuttall,—as some recent investigations appear to prove,—defined the distinct characteristics of the hickories, and not only proposed, but published the name Hicoria for this genus in 1817, while Nuttall's Carya did not appear until one year later, viz.: 1818. For these dates I am mainly indebted to Dr. N. L. Britton, who appears to have been delving among "first editions" of the works of the authors named (Bulletin, Torrey Botanical Club, 1888).

It seems strange, however, at this late date, that such eminent botanists as the late Dr. John Torrey and Dr. Asa Gray, who were both intimately acquainted with, in fact associates of, Rafinesque, should have ignored his rights in regard to the name of Hicoria, if he was really entitled to the honor of founding this genus and separating the hickories from the Juglans. But for some good reason they left the matter in abeyance, for their successors to settle. Dr. Torrey does, in a way, recognize Rafinesque, in his "Catalogue of Plants Within Thirty Miles of the City of New York," published in 1819, but in a manner which shows that he had no confidence in Rafinesque's claim, but did approve of Nuttall's classifications and name of Carya, for on page 74 he refers to the hickories as follows: "Carya, Nuttall; Hickoria, Rafinesque."

From this it appears that Dr. Torrey did not adopt Hicoria as the proper mode of spelling this word, but retained the letter k in giving it a Latin form. This is not strange, inasmuch as Rafinesque had no settled form of his own, and varied the spelling at different times; as, for instance, Scoria, Hicoria, Hickorius and Hicorius. It is but reasonable to suppose that Dr. Torrey was familiar with Rafinesque's earlier writings, and also whether his proposed generic name of Scoria, in 1808, was legitimate, or a misspelling of Hicoria, as suggested by Dr. Britton. But of one thing we may rest assured, and that is, Dr. Torrey would not knowingly detract from, nor fail to give every man full credit for his labors in any branch of natural history or elsewhere, and he certainly must have known Rafinesque in all his eccentricities and moods, for when in New York city he was usually the guest of Dr. Torrey, and these relations continued for many years.

A few of our leading botanists, having recently decided that Rafinesque's name of Hicoria must be restored, in deference to the laws of priority, and Nuttall's Carya be relegated to the position of a synonym, I have concluded to adopt it in this work, although I am well aware that a large majority of our botanists have protested against this change, probably because of the confusion it is likely to cause in the botanical literature of our times. My own reason for adopting Hicoria is not so much from any special reverence to the laws of priority, but because it is derived from an old American Indian name, and for all such I have a profound regard, and would retain and adopt them whenever and wherever they are at all appropriate to products indigenous to this country. The hickories being purely American, and unknown to Greece or Greeks, a semi-native name is all the more acceptable. It is not to be expected that botanical quibbles are of any special interest to the practical nut culturist, for a pecan or a shellbark hickory will taste just as sweet and command as high a price in market under one scientific name as another; but the cultivator may have occasion to look up the botanical name of his trees in some school botany, or other botanical work, and fail to find it, in the absence of some guide to the various changes that have been made in the name of the genus, as well as in the name of the synonyms of the different species. Then, again, propagators and dealers in trees are prone to employ unfamiliar names, whether they are old or new, this adding to the confusion, without benefit to either purchaser or cultivator.

To assist those who may have occasion to consult these pages for either the common or botanical names of the different species of the hickory, I shall endeavor to give the greater part of those compiled by Prof. C. S. Sargent (Tenth Census), Dr. Britton, and other eminent authorities whose works I have had occasion to consult in writing this treatise. It is not certain, however, that these revisions and readjustments of the scientific names of this genus of trees will remain undisturbed for any considerable number of years, for we have "many men of many minds" at work in the line of botanical research, and it can scarcely be expected that all will reach the same conclusion, either in fact or fancy; besides, it is often difficult, if not wholly impossible, to determine a species from the description given by the earlier botanists, for they are generally very brief and vague, and will often apply equally well to two or more species of the same genus. In some instances not a word is given in the way of description, merely a name, as in "Bartram's Travels" (1791), where he speaks of Juglans exaltata, a tall-growing hickory found in the region through which he was traveling, and we now know that it may have been any one of two or three species indigenous to the Southern States.

Under such confusing circumstances I shall make no claim of infallibility in applying names to species, but attempt no more than my predecessors have in the same direction, and my contemporaries are now attempting, i. e., make as close a guess as possible as to the species or variety of hickory which the earlier authors intended to name and briefly describe. The date of publication of some of the earlier works consulted are given, as an earnest of my desire to assent to the law of priority in such matters.

[154]
[155]

Pecan nut, Illinois nut (Hicoria Pecan. Marshall).—Leaves with thirteen to fifteen leaflets, oblong-lanceolate, serrate, pointed; nuts mostly oblong, smooth; husk thin, somewhat four-angled and four-valved, these at maturity shrinking, and falling apart when dropping to the ground. Shell of nut generally thin, smooth or slightly corrugated, varying widely in both form and size from less than one inch in length to nearly or quite two inches, abruptly blunt, or long and sharp pointed; the two-lobed cotyledon or kernel oily, sweet and delicious. A large, tall, but usually slender tree, with smooth or slightly furrowed bark, as seen in Fig. 45. Mainly indigenous to river bottoms in the Southern and Southwestern States, extending northward to Indiana, Illinois, Missouri and Southern Iowa.

Synonyms and their authors:

Juglans Pecan, Marshall, Arboretum Americanum, 1785.
Juglans Pecan, Walter, 1787.
Juglans olivÆformis, Willdenow, 1809.
Carya olivÆformis, Nuttall, 1818.
Juglans Illinoiensis, Wangenheim, 1787.
Juglans angustifolia, Aiton, Hortus Kewensis.
Juglans rubra, GÆrtner.
Juglans cylindrica, Lamarck.

Shellbark or shagbark hickory (Hicoria alba. Clayton).—Leaflets mostly five, occasionally seven, the three upper ones obovate-lanceolate, the lower pair much smaller and oblong-lanceolate, as shown in Fig. 46, all taper-pointed, finely serrate, and slightly downy underneath. Terminal buds large and scaly. Fruit globose, somewhat depressed; husk smooth, very thick, firm, scarcely shrinking at maturity, but opening and falling with the nuts when ripe. Nuts variable in size, mainly thin-shelled, white, compressed or flattened, four-angled, with deep corrugations, blunt, rarely sharp-pointed;[156]
[157] kernel large, sweet and excellent. One of the most common and popular of the indigenous edible nuts, collected in large quantities as they ripen in autumn, for home use and for sale, as the demand for this excellent nut is almost unlimited. A large tree, fifty to eighty feet high, and stem one to three feet in diameter, with a shaggy or scaly bark, which on old trees may be readily pulled off in long, shell-like plates. Timber well known as valuable for many purposes. This species has a very wide range, of from Maine to Florida in the Eastern States, and westward to Minnesota, thence southward through eastern Kansas, Missouri, Indian Territory and eastern Texas.

Synonyms:

Juglans alba, Clayton, Flora Virginica, 1739.
Juglans alba ovata, Miller, Gard. Dict., 1754.
Juglans alba, Linn., Spec. pl., 1754.
Juglans alba ovata, Marshall, 1785.
Juglans compressa (?), Willdenow, 1809.
Juglans exaltata (?), Bartram, 1791.
Juglans alba, Nuttall, 1818.
Juglans var. microcarpa, Nuttall.
Juglans squamosa (?), Lamarck.
Juglans ovalis (?), Wangenheim.

Although Clayton, as with most of the earlier botanists, fails to give any description of the foliage of the hickories he mentions, and all have the affix alba (white), yet his reference to the form of the nut and the scaly bark of the tree is sufficient to enable us to identify the species as that of our common shellbark hickory of the Atlantic States, which extends through the regions where he gathered his botanical specimens.

Big shellbark, thick or Western shellbark, etc. (Hicoria laciniosa. Michaux).—Leaflets seven to nine, obovate-oblong, finely serrate, roughish-downy or pubescent beneath. Buds large, composed of rather loose grayish scales; the young twigs stout, with a gray bark, most noticeable in winter. Fruit large, oval to oblong, usually four-ribbed above the middle, with depressions between; husk thick, somewhat spongy, shrinking at maturity, and splitting open from top downward. Nut large, with prominent ridges, and strongly pointed, but slightly compressed at the sides, as seen in Fig. 47; shell thick and of a dull yellowish color; kernel moderately large, as shown across section of nut in Fig. 48, but much smaller in proportion to the size of the nut than in the two preceding species, but it is sweet, well flavored, and easily removed from the shell when cracked. The very large size of these nuts makes them a favorite, especially where the pecan and the true shellbarks are not plentiful. These nuts were formerly known as the Springfield or Gloucester nut. A very large tree, sixty to eighty feet high, and two to four feet in diameter, with thick, scaly bark, the scales somewhat thicker than in the common shellbark hickory of the Atlantic States. A rare tree, except in the valleys west of the Alleghanies, although it is reported to have been found in Chester county, Pennsylvania, and thence west to southern Indiana, Illinois, Missouri, eastern Kansas, and the Indian Territory. Plentiful in the bottom lands along the Ohio, Mississippi and lower Missouri. Elliott, in "Botany of South Carolina and Georgia" (1824), says it is rare in the low country of Carolina, but he does not say that it is found plentiful anywhere in the South. That he was sometimes in doubt in regard to the identification of this and other species may be inferred from his remark, namely: "The greater part of our hickories resemble each other so closely in their leaves and vary so much in their fruit that it is very difficult to discriminate the species."

It is this difficulty of identification which has led to so much confusion in the application of the specific names, for the earlier botanists rarely had an opportunity of a close and careful examination of the trees or other plants which they attempted to describe. In relation to the species under consideration, we find that the specific name of sulcata, so long in use, was adopted by Nuttall, from some earlier or contemporaneous author,—a system he followed with all the different species of the hickory, but without, in some instances, any discrimination or regard to their adaptation or validity. If there was anything to show that Willdenow (1796) had this Western shellbark in mind, or that he or his correspondents in this country had ever seen or collected it, then we might adopt the name of sulcata as the original and true one; but in the absence of such information, with a full and accurate description of the species and its habitats by Michaux, under the name of laciniosa, I think, in common justice to one of the most eminent dendrologists who ever visited this country, the name given should stand as the true one for this species. See Michaux, "North American Sylva," Vol. I, p. 128.

Synonyms:

Juglans sulcata (?), Willdenow, 1796.
Juglans laciniosa, Michaux, 1810.
Carya sulcata, Nuttall, 1818.
Carya cordiformis, Koch, Dendrologie.

The three preceding species are probably the only ones worthy of propagation for their fruit, or that have and are likely to yield varieties of any considerable economic value; but as it is important that the nut culturist should know the materials he is using, and whether they be of the best or otherwise, I shall admit all the species, without regard to their merits or value for cultivation.

Mocker nut, bull nut, big-bud hickory, king nut, white-heart hickory, etc. (Hicoria tomentosa. Michaux).—Leaflets mostly seven, occasionally nine, large, oblong-obovate, rather long pointed, slightly serrate, smooth on both sides while young, becoming roughish downy underneath when fully developed in summer; leaf-stalks and catkins also somewhat downy. Fruit medium to very large, round or ovoid, with a very thick woody husk, which splits nearly or quite down to the base, but usually falling with the enclosed nut entire, or bursting open as they strike the ground. Nut very thick shelled, smooth, or strongly four to six angled, white at first, but becoming a dull brown when exposed to the light. The kernel is sweet, but so small and firmly imbedded in the thick shell that it is only to be removed in minute sections, but this is successfully accomplished by the squirrels, who often throw down the entire crop from large trees before the shells harden, and then pack them away in the ground, in old logs, and under the leaves, where they will not dry for some weeks or months later. An exceedingly variable species, especially in the size and form of the nuts; on some trees they are scarcely an inch in diameter, while on others they are nearly or quite two inches, but always with such a thick, hard shell as to be nearly worthless for their meats. The largest of these nuts I have ever seen grow in central and western New York, where they are called "King" or "Bull" nuts.

The trees grow to a very large size, or from sixty to eighty feet high, and two to three feet in diameter, with a thick, deeply furrowed bark, not scaly. The wood is white, heavy, tough, and nearly as valuable as the common shellbark hickory. The terminal buds, and especially those on the young seedlings and suckers springing up in clearings, are very large, round, short, and covered with brownish scales, hence one of the local names of big-bud hickory.

A widely distributed species, or from the valley of the St. Lawrence to Florida, and along the great lakes to Nebraska, and thence southward to Texas. Unlike most of the other hickories, this species seems to prefer thin soils, rocky sandstone ridges, and here in New Jersey almost disappearing in the rich bottom lands along our creeks and rivers; at least, this is its habit here in the northern part of the State.

Synonyms:

Juglans alba (?), Linn., 1754.
Juglans tomentosa, Michaux, 1810.
Carya tomentosa, Nuttall, 1818.
Carya tomentosa var. maxima, Nuttall.
Carya alba, Koch, Dendrologie.

Pignut, hognut, brown hickory, black hickory, switch-bud hickory (Hicoria glabra. Miller).—Leaflets five to seven, mostly seven (Fig. 49), ovate-lanceolate, serrate, smooth; fruit pear-shaped or roundish-obovate; husk very thin, splitting about half way down into four sections or valves, these usually remaining attached to the nut for some time after falling, in fact, may often be found within the husk all through the winter; shell of nut moderately thin but tough, with a small, bitterish-sweet kernel. A large, rather slender tree in similar and same localities as the last, with a close bark but not so deeply furrowed as in the mocker nut (H. tomentosa). Of no special value except[163]
[164] as a timber tree, and its slow growth makes it less deserving of attention than those species that bear large and edible nuts.

Synonyms:

Juglans glabra, Miller, 1768.
Juglans alba acuminata, Marshall, 1785.
Juglans obcordata, Lamarck.
Juglans porcina, Michaux.
Juglans pyriformis, Muhlenberg.
Juglans porcina, var. obcordata, Pursh.
Juglans porcina, var. pyriformis, Pursh.
Carya porcina, Nuttall.
Carya glabra, Torrey.
Carya amara, var. porcina, Darby.

Bitternut, swamp hickory, pignut (Hicoria minima. Marshall).—Leaflets seven to eleven, oblong-lanceolate, serrate, smooth and thin; fruit globular, with distinct ridges at the seams (Fig. 50); the husk very thin, and at maturity splitting about halfway to the base, the four divisions becoming reflexed in maturing, but not separating and falling apart as in the thicker-husk species. Nut broadest at the top, sharp-pointed, obcordata (Fig. 51), slightly depressed; shell very thin, smooth, white; kernel intensely bitter when fully ripe, but greedily eaten by squirrels when fresh or in a half milky state. Usually a medium-sized, graceful tree, with smooth bark, slender twigs, and small, oblong buds covered with a dense yellow pubescence in winter. It grows in moist soils, along streams and borders of swamps, and near springs on hill-sides, from Maine to Florida, and westward to Minnesota, Nebraska and Kansas. Humphrey Marshall described this species so accurately in his "American Grove," under the name of Juglans minima, p. 68, that there is no good reason to doubt its identity, nor question the validity of this name, which should remain as the true and original one, and all others of later date be placed among the synonyms.

Synonyms:

Juglans (alba) minima, Marshall, 1785.
Juglans cordiformis, Wangenheim, 1787.
Juglans angustifolia, Lamarck, 1791.
Juglans amara, Michaux, 1810.
Hickorius amarus, Rafinesque, 1817.
Carya amara, Nuttall, 1818.

Nutmeg hickory (Hicoria myristicÆformis. Michaux).—Leaflets five to seven, ovate-lanceolate, pointed, quite smooth on both sides, the terminal leaflet sessile, not stalked; fruit oval; husk wrinkled and rough, thick; nut small, oval, short-pointed; the shell furrowed and very hard, and of a brownish color marked with white lines. Michaux says: "The shell is so thick that it constitutes two-thirds of the volume of the nut, which, consequently, is extremely hard, and has a minute kernel. It is inferior to the pignut."

A medium-size tree with slender branches, found in a few localities in South Carolina, near swamps and borders of streams, and westward to Arkansas, where it reaches its greatest development. This hickory has been so rarely seen by botanists that Michaux's specific name, given it more than eighty years ago, has fared a better fate than those of our more common and abundant species; consequently, I have only one synonym to record, viz.: Carya amara, var. myristicÆformis, Cooper, in Smithsonian Report, 1858.

Water hickory, swamp hickory, bitter pecan (Hicoria aquatica. Michaux).—Leaflets nine to thirteen, generally eleven, narrow and obliquely lanceolate-pointed, slightly serrate, thin and smooth; fruit globular or somewhat egg-shaped, four-ribbed; husk thin, dividing at maturity down to the base; nut thin-shelled, four-angled; kernel much wrinkled and very bitter. This is closely allied to if not a more Southern form of our common bitternut. A small tree in swamps and river bottoms from North Carolina south to Florida, and west to Texas.

Synonyms:

Juglans aquatica, Michaux.
Hicorius integrifolia, Rafinesque.
Carya aquatica, Nuttall.
Carya integrifolia, Sprengel.

Varieties of the Hickories.—Every one who has ever had occasion to gather or examine hickory nuts in the forest, or has seen them in market, must be aware of the fact that there is an almost endless variety of each and all the different species. But as it is only the varieties of the pecan and thick- and thin-shelled shagbark hickories that are likely to be of any economic value to the nut culturist, all others will be omitted. Of the first or pecan nut the natural varieties are not only exceedingly numerous, but vary widely in size, form, thickness of shell, and productiveness of the individual trees. In some the nuts are produced singly or in pairs, and from this number up to clusters of seven or eight; these large-clustered and extra-prolific varieties are most worthy of special attention, especially when the nuts are of good size and thin-shelled, as in the large, long pecan (Fig. 52). From this size they vary, as shown in Figs. 53, 54, 55. Some of the wild varieties have received local names, and a very few propagated by grafting, which is probably the most practical means known of multiplying them, and at the same time preserving their varietal characteristics. Choice and extra fine ones are constantly being discovered and brought to notice, and doubtless many more will follow as the old fields and forests of the South and West are explored; besides, there are many thousands of seedling trees now under cultivation, and from these we may expect some marked variations from the original or wild forms. In Bulletin 105, of the North Carolina Agricultural Experiment Station for 1894, and in Report of Assistant Pomologist of U. S. Department of Agriculture for same year, we find the following-named varieties of pecans:

Alba.—Size below medium, cylindrical, with pointed apex; cracking qualities good; shell of medium thickness; corky shell lining thick, adhering to the kernel; kernel plump, light colored; quality good.

Biloxi (W. R. Stuart, Ocean Springs, Miss.).—Medium size, cylindrical, pointed at each end; surface quite regular, light brown; shell thin; cracking qualities medium; kernel plump, with yellowish-brown surface; free from astringency, of good quality, and keeps well without becoming rancid. Introduced several years ago by W. R. Stuart as Mexican Paper Shell, but the name has since been changed to Biloxi.

Columbian (W. R. Stuart, Ocean Springs, Miss.).—Large, cylindrical, somewhat compressed at the middle, rounding at the base; pointed and somewhat four-sided at the crown; shell rather heavy; cracking qualities medium; quality good. In size and form this nut closely resembles Mammoth, which was introduced in 1890 by Richard Frotscher, of New Orleans, La.

Early Texan (Louis Biediger, Idlewild, Tex.).—Size above medium, short, cylindrical, with rounded base and blunt conical crown; shell quite thick, shell lining thick, astringent; cracking qualities medium; kernel not very plump, of mild, nutty flavor; quality good.

Georgia Melon.—Size above medium, short, rather blunt at apex; cracking quality medium; shell rather thick; kernel plump, brown; meat yellow, moderately tender, pleasant, good.

Gonzales (T. V. Munson, Denison, Tex.).—Above medium size, with firm, clear shell; quality excellent. Originated in Gonzales county, Tex.

Harcourt.—Size medium, short, slightly acorn-shaped; cracking qualities medium; shell rather thick, but very smooth inside; kernel short, very plump; meat yellow, very tender, rich, very good.

Longfellow.—Size medium, oblong, cylindrical, somewhat irregular, enlarging from base to near crown, then sharply conical to the apex; cracking qualities not first-class; shell of medium thickness; kernel plump but rather thin, light-colored; meat white, sweetish, rich, good.

Primate (W. R. Stuart, Ocean Springs, Miss.)—Of medium size, slender, rather long; shell thin; quality good; ripens in September, thirty days before other nuts.

Ribera.—Size above medium, oblong ovate; cracking qualities good; shell thin; kernel plump, light brown, free from the bitter, red, corky growth which adheres to the shell; meat yellow, tender, with rich, delicate, pleasant flavor.

Faust.—A South Carolina variety of medium to large size, medium shell and good quality.

Frotscher.—A Louisiana variety of large size, very thin shell, and plump kernel of good quality.

Jewett.—From Mississippi; a large, long nut, rather irregular; shell medium; quality very good.

Stuart.—A large, roundish, oblong nut from Mississippi (Fig. 56).

Turkey Egg.—A variety from Florida; large and thin-shelled.

Van Deman.—A large variety from Mississippi, of oblong form and thin shell (Fig. 57).

From other sources we collect other names, namely:

Idlewild.—An oval shaped nut from Idlewild, Texas. Report of U. S. Department of Agriculture, 1890.

Risien.—A very broad, thick variety, about one inch in diameter, very blunt at both ends. From San Saba, Texas (Fig. 58).

A peculiar shaped pecan nut is shown in Fig. 59, from Louisiana, sent under the name of Lady Finger.

From the report of the Georgia State Horticultural Society, 1893, we obtain certain local names without description, as, for instance, Turkey Egg, Mexican, Colorado, Pride of the Coast, etc. Col. W. R. Stuart, of Ocean Springs, Miss., who has been called the "father of pecan culture" in that State, and is the author of "The Pecan and How to Grow it," adds two more varieties to the above list, viz.: Beauty and Columbia; the latter, as figured in the book named, is a very large variety, tapering from a broad base to a sharp point. Judge Samuel Miller, of Bluffton, Mo., found some very large and fine varieties of the pecan in his neighborhood several years ago, on the farm of a man named Meyers, and he purchased the nuts from the tree bearing the largest in the grove and planted them, and the seedlings have since been distributed under the name of "Meyers' Pecan."

Judge Miller kindly sent me a quantity of these nuts, from which I raised some fifty or more trees, and all have thus far been uninjured by the cold of our severest winters. From my own experience in raising pecan trees, and I may add, that of some of my neighbors, those grown from nuts gathered in the more Southern States are almost invariably tender here in the North; but those raised from thoroughly acclimated trees, along the northern limits of this species, will give us a hardy race, and probably allow of extending their cultivation far north of their natural range. Those who intend to try pecan culture in the Northern States should bear this in mind, and secure nuts and cions from hardy acclimated trees.

Varieties of the Shellbark.—Of this species (H. alba) there are as many distinct natural varieties as of the pecan, and while local or neighborhood names are plentiful enough, they have not, except in a very few instances, been placed on record in agricultural reports or other publications. Three small thin-shelled varieties are named in the Report of the Pomologist of the U. S. Department of Agriculture for 1891, viz.: Milford, Shimar and Leaming, but neither has been propagated, and they are probably not worthy of it, because there[171]
[172] are plenty of larger ones with thin shells which would be far more valuable for cultivation.

A careful research extending over a period of a quarter of a century yields only a solitary instance of the propagation and dissemination of a variety of the shellbark hickory, and this one is Hales' Paper-shell, which I named, described and figured in the Rural New-Yorker, Nov. 19, 1870, p. 382, Vol. XXII. I am thus particular in regard to time and place, because years hence these facts may be of more importance than at the present day.

The original tree of this remarkable variety is growing upon the farm of Mr. Henry Hales, near Ridgewood, N. J., and on bottom land within a few rods of the Saddle river. The tree is probably more than a hundred years old, and is about seventy-five feet high, and nearly two feet in diameter at the base, and of the shape shown in Fig. 60, taken from a sketch made in the fall of 1894. There are a large number of the shellbark hickories growing near by, and while there are several excellent and very large varieties among them, the one I have named is by far the largest and most distinct in form, and with the thinnest shell; in fact, the shell is much thinner than in many of the pecan nuts that reach our Northern markets from the South. The size and form of these nuts is clearly shown in Fig. 61, while the thin shell and thick, plump kernel is seen in the cross-section, Fig. 62. It will be noticed that these nuts differ from the ordinary varieties of this species in the absence of the sharp ridges and depressions running from base to point, the surface of the shell being broken up into irregular, wavy lines, somewhat resembling the shell of the more common varieties of the Persian walnuts. I have occasionally seen very similar varieties,—but of smaller size,—among the mixed lots of hickory nuts on sale in our city markets, also oblong nuts, as shown in Fig. 63, but of course there is no way of tracing these to the trees producing them.

Another merit, in addition to the large size and thin shell of the Hales' Paper-shell, is its keeping qualities, the kernels rarely becoming rancid, even when two or more years old, and from a long acquaintance with this nut and hundreds of other varieties gathered from all parts of the United States, I am inclined to place it at the head of the list, and as the most valuable sort as yet discovered. It is true, however, that I have found in the forests, and also received, many very large and superior nuts of this species, that are well worthy of propagation and cultivation, but they have been, in the main, of the typical form, and not of so distinct a type as this Paper-shell. Judge Miller sent me a few nuts of a shellbark found in Missouri, that were even larger, and with fully as thin shell as that of the Hales' (Fig. 64), but upon making further inquiries in regard to the tree that produced them, I learned that an incoming railroad line had destroyed it, and thus one more tree of inestimable value had been sacrificed in the march of this progressive age.

Varieties of the Western Shellbark.—The typical form of the thick or Western shellbark (H. laciniosa) has already been shown on a preceding page, but some remarkable and valuable varieties have been found in the Western States, and no doubt others will be, when more attention is paid than at present to the natural food products of our forests. The tendency of this species, in its variations, is usually in the direction of an elongation of the nuts, even when there is no decrease in the thickness of the shell, as shown in Fig. 65, taken from one of a number of long varieties collected in the Western States; and while they do not possess any special merit, they attract attention, owing to their unusual form.

Nussbaumer's Hybrid.—Several years ago I received a specimen of a very remarkable nut from Judge Samuel Miller, of Bluffton, Mo., under the name of "Nussbaumer's Hybrid Pecan." Judge Miller informed me that he had received it from Mr. J. J. Nussbaumer, Mascoutah, St. Clair Co., Ill., who claimed that it was a hybrid between the pecan and the large western shellbark hickory (H. laciniosa). I had an illustration made of this specimen, and it appeared, with a brief description, in the American Agriculturist for Dec., 1884, p. 546. Soon after receiving the specimen nut from Judge Miller I opened correspondence with Mr. Nussbaumer, and learned from him that only one tree bearing such nuts[175]
[176] had ever been found, and this was of large size, six and a half feet in circumference, and about fifty feet high, the bark somewhat like that of the hickory but nearer the pecan. Mr. Nussbaumer sent me specimens of the green nuts with leaves and twigs, from the original tree. The nuts, however, of that season (1884), were badly infested with the "hickory-shuck worm" (Grapholitha caryana, Fitch), and these had so ruined the shucks, and even eaten into the shells of the nuts, that few of the specimens received were fully developed. But from two nuts I had a sketch made while they were fresh and of natural size, as shown in Fig. 66, the dark, irregular marks on the husks showing where the shuck worm had attacked them. One of these nuts is shown in Fig. 67, also natural size. I planted one of the nuts, from which I now have a tree about ten feet high, but although ten years old it has not fruited, and, so far as I can judge from its appearance, is a pure Western shellbark, with no indication of hybridity; but of course this does not prove that the original or parent tree is not a hybrid, as claimed by Mr. Nussbaumer, Judge Miller, and, if I am rightly informed, Prof. T. J. Burrill, of the University of Illinois.

However widely opinions may differ in regard to the origin of this variety, it is certainly a most remarkable nut, and I regret that the exact location of the original tree has entirely escaped my most careful seeking; and of late years I have been unable to learn anything of Mr. Nussbaumer, further than that he had moved from Mascoutah to Okawville, Ill., the last letter received from him being dated Dec. 13, 1887. In one of his letters he said that he had raised a large number of seedlings from this supposed hybrid, and if these are still alive they would be of much scientific interest, especially if any of them showed the distinct characteristics of either of the supposed parents.

It would certainly be a pity to have such a remarkable nut lost to the world, because if propagated by grafting or by any other mode to insure perpetuating its varietal characteristics, its value could scarcely be estimated. The nuts are as thin-shelled as the common pecan, the kernel sweet and good, and in addition, the tree is a native of a northern State, and would, no doubt, prove as hardy as our common shellbark hickories.

The Floyd pecan.—This is another supposed-to-be hybrid, and of the same species of hickory as the last; but the one nut which I received differed from the Nussbaumer by being somewhat larger, and the shell with more prominent ridges and a little thicker. It was said to have been found somewhere in southern Indiana by a Mr. Floyd, who, believing it to be of great value, refused to give any information likely to aid any one else to locate the original tree, neither would he part with any of the nuts except the one specimen which eventually came into my hands. Of course all horticulturists know that seedlings raised from such freaks among nut trees are far too uncertain to be of much value, but ignorance in such matters often leads the possessor of an article slightly differing from the ordinary to permit his imagination to warp his good sense.

Cultivation of the Hickories.—The hickories have been so seldom planted in our Northern States for any purpose, that anything like a systematic cultivation of these trees is a thing almost unknown. Of course there is no good reason why the hickories should not be multiplied and cultivated as well as other kinds of trees, but in some unknown way the idea became prevalent that these trees could not be transplanted with any assurance of success, and this has been kept alive, either through ignorance or by those whose interest led them to encourage the planting of the rapid-growing and easily propagated kinds, instead of those which, though less profitable to the producer, would be of far greater value to the purchaser. It must be admitted, however, that the hickories are not so tenacious of life as the willows, poplars, elms and similar kinds of trees, requiring more care in their cultivation if they are to be transplanted when of a proper size for setting along roadsides or elsewhere, for shade and ornament, but they are certainly no more difficult to make live than the beech, oak, tulip and various species of the magnolia.

The slow growth of the hickories while young is another objection often urged as a fault of these trees, but there is nothing lost but time in waiting, and this passes just as swiftly whether we plant trees that may in ten years yield a golden harvest, or nothing but leaves; besides, the hickories respond as readily to stimulants and good care generally as the common fruit trees of our orchards. While the farmers of our Northern States are generally quite indifferent as to what becomes of their old hickory trees, and seldom attempt to preserve the wild seedlings that spring up in the fields and on the borders of forests, their fellow countrymen of the Southern States have, within the past two or three decades, discovered that they possess an inexhaustible source of wealth in their common pecan nut. Formerly these trees were sacrificed whenever a choice piece of tough timber was wanted, and often merely to secure the entire crop of nuts without waiting for nature to drop them within reach; but the advent of many lines of railroads, steamboats, and other means of communication with the great cities and their markets, has changed this inclination to destroy into one of preservation. The old pecan trees are not only appreciated as a source of income, but thousands and tens of thousands of seedlings are now annually raised and planted, to insure larger returns in the near or distant future. In fact, pecan culture has already become an important industry in several of the Southern States, although in point of age it is little more than a fledgling. We have no statistics to show what the annual crop averages in pounds or bushels, but it must be something enormous if we make our estimate from the quantities received and distributed in the Northern States. But with all the efforts put forth to secure a supply of these nuts, and the high prices they command at both wholesale and retail, the demand seems to keep well in advance of the supply, and this will, in all probability, continue as our population increases. In the way of demand, the same is true with our northern species of the shellbark hickories, which were formerly very abundant, but of late years have become rather scarce, for reasons too obvious to call for any explanation at this time.

In selecting a location for planting and cultivating the hickories, including the pecan, a moist, deep soil is certainly preferable to any other, especially for the three species and their varieties most promising for this purpose, because we find them growing wild in such situations and soils. But while these naturally deep, rich and moist soils are to be preferred, no one need hesitate to plant hickories on light, dry, and even poor soils, if they are properly enriched, or a few shovelfuls of fine old stable manure is thoroughly mixed with the earth in which the roots are set, and then a mulch applied to the surface to keep the soil moist. Almost any old waste fibrous material, such as leaves, straw, hay, weeds or coarse manure, will answer for mulching newly planted trees, and it should be applied to a depth of three or four inches, and renewed annually, or as often as necessary to prevent the growth of grass or weeds growing within three or four feet of the stem of the tree. In all dry climates and soils mulching should be considered an important operation, not to be omitted until the trees are from six to ten years old, and it may usually be continued a longer time with benefit.

Propagation.—All the species of the hickory are very readily grown from nuts gathered when ripe and planted within a few weeks; or they may be mixed with or stratified between layers of sand and light soil and buried in the open ground for the winter, and the planting deferred until the following spring. They are not at all delicate and will withstand considerable drying and neglect, and will grow, if stored in a cool cellar, without being packed in either soil, sand or other material. But as I have had no occasion to determine how much neglect these nuts will withstand, nor to what extremes of adverse conditions it is safe to subject them, I shall leave investigation in this direction to others, because in general practice no valuable seed or plant grows any too readily and freely to satisfy the cultivator, and for this reason I recommend either planting hickory nuts in the fall, or burying them between layers of light soil or sand, sifting out and planting early the following spring. If any considerable quantity is to be planted they should be dropped three or four inches apart in shallow trenches and covered about two inches deep. The distance between the rows may be from two to three feet, depending upon the implements to be used in their cultivation.

The soil for a seedbed should, of course, be made rich and deep, or the same as recommended for chestnuts, and all the means usually employed to assist the growth of cultivated plants are applicable to nut trees. I may also add that cutworms, white grubs and other noxious insects are enemies of nut-tree seedlings as well as garden vegetables. The seedling hickories should be treated as advised for chestnuts; that is, dug up when one or, at the latest, two years old, and their central or taproot shortened to at least one-half their original length, and then reset in nursery rows, and at a distance of twelve to fifteen inches apart in the row. If grown in ordinary upland, the transplanted seedlings will make a better growth if heavily mulched than under the usual system of clean cultivation, and it is usually less expensive; besides, by keeping the surface of the soil cool and moist, we encourage and assist the production of fibrous lateral roots, which, as a rule, are none too abundant on seedling hickories, no matter under what conditions or system of cultivation they are raised.

When the seedlings have grown in the nursery rows two or three years, they will probably be large enough for planting where they are to remain permanently; but if, for any reason, they are not disposed of, then they should be again transplanted,—the larger roots shortened,—and re-set in good rich soil. The object of transplanting is to insure the production of small fibrous roots, and a frequent renewal of the same, close to the main stem or stock, as long as the trees remain in the nursery, whether this be two or twenty years. This is somewhat of an expensive operation, but the value of stock thus handled is enhanced far more than the cost of such transplanting, and purchasers are, or at least should be, willing to pay a fair price for such trees.

It is the natural habit of the hickories, as well as many other kinds of deciduous trees, to produce in their earlier stages of growth rather large, deeply penetrating, naked roots, with few small fibers, and in this condition they are not so readily and successfully transplanted as the kinds possessing a more ramified root system. This, perhaps, has misled many persons to believe that certain kinds of trees, like the hickories, could not be moved at all, or at least not with any assurance of being made to live. This idea has become so prevalent among inexperienced cultivators, and, I regret to add, often reiterated by theorists, that it has discouraged many who otherwise would have raised and planted nut trees in preference to other kinds.

Admitting that it is the general habit of most kinds of forest trees to produce deeply penetrating taproots, when grown from seed, it proves nothing more than that these parts may be of some importance to the plants while they are young, and under natural conditions, yet they are not absolutely necessary, and, at most, are only temporary organs, like the tails of tadpoles, always disappearing with maturity.

Any one at all observing, and having had an opportunity of examining limited or extended areas of forest trees thrown over by hurricanes, must have noticed that no tree of any considerable size and age possessed a taproot, but had been for years kept in its upright position by lateral brace-roots, and through these it had also obtained nutriment from the surface soil. Some of my correspondents in the South have expressed their surprise at not finding any trace of the original central roots on old pecan trees, when blown over by severe wind storms. But it is the same everywhere with forest trees and where the soil is naturally loose and moist: the principal or supporting roots spread out widely and remain near the surface, and the central roots or taproots disappear much earlier than in dry soils.

In multiplying trees under artificial conditions, we remove the taproots, not only for convenience in transplanting, but also to hasten and increase the production of surface lateral roots, and more than this, we lessen the years of luxuriant sterility, securing earlier fruiting by such operations as root pruning and frequent transplanting.

Budding and Grafting.—I have never known of an instance of successful budding of the hickory, at least in the ordinary way during the summer months. What is called "annular budding" in early spring with buds of the previous season, is said to have been successfully practiced with the pecan at the South, but this mode of propagation is more of the nature of grafting than of what is usually understood as budding. But I have been unable to obtain any statistics in regard to the proportion of buds that any propagator or experimenter has made live by this or other modes of propagation. Col. Stuart says, in "The Pecan," p. 45, "There is a method known as 'annular budding,' which proves quite successful." He then proceeds to describe the operation, as given in all works on the propagation of trees and plants during the past hundred years or more, but not a word to indicate what he considers a "success,"—whether it be once or fifty times in a hundred, or if he ever succeeded in making an annular bud unite to the stock; I am more inclined to think that he never did, than otherwise.

In Bulletin No. 105, "Nut Culture for North Carolina," issued from the N. C. State Experiment Station, 1894, Mr. W. A. Taylor, Assistant Pomologist U. S. Department of Agriculture, in referring to budding and grafting of these trees, says: "These latter operations are less successful with the pecan than most fruit trees, though they are by no means impossible to accomplish. On seedlings one or two years old annular budding in early summer succeeds best." But here again we are left in doubt in regard to what the writer considers "a success." Then, again, the line between the "possible" and "impossible," in horticultural matters, is a rather difficult one to determine, and Mr. Taylor fails to cite a single instance in which either annular or any other form of either budding or grafting had been successfully practiced. The Bulletins issued from the Division of Pomology of the Department of Agriculture, give us no information whatever on this subject of propagation of the hickories, further than to repeat the old formulas of annular, splice and cleft grafting; but as to results they have always been provokingly silent.

Having been repeatedly assured, by men who presumed to know, that the pecan tree was successfully propagated in the South by grafting, and many thousands annually raised in this way, it seems strange that such plants are so rarely offered by nurserymen. Seedlings of choice varieties are, of course, abundant enough, but a man might, with as much propriety, offer seedling Bartlett pears or Baldwin apples, as pecan trees, expecting to perpetuate varieties. In corresponding with Mr. P. J. Berckmans, of the Fruitland Nurseries of Augusta, Ga., whose experience and acquaintance with the fruits of the South are, without doubt, in advance of any other horticulturist of the past or even the present generation, in reply to my request for information on grafting pecans, he writes: "For the past five or six years we have grafted various varieties of the pecan nuts. I do not know of any other nurseryman South who offers grafted trees. I presume the reason of this is, the great difficulty in having the grafts take, as we seldom have more than fifteen to twenty-five per cent. grow. We usually crown graft in February, using one-year-old seedlings grown in nursery rows. Owing to the small percentage of grafts which grow, grafted trees must, necessarily, be quite expensive, and for this reason there are so few attempts made in this method of propagation."

Mr. Berckmans makes no reference to annular budding of the pecan, so strongly and frequently recommended by the several writers already quoted, although I am certain that he is as familiar with this mode of propagation as any one else, and would have practiced it had he found it in any way superior to crown grafting. From all that I have been able to learn through a rather extended correspondence, in regard to the propagation of the pecan nut tree in the South, I conclude that they are occasionally and sparingly grafted, but with such indifferent results that they are not at all numerous in either orchards or nurseries.

From certain remarks of Col. Stuart, in his essay on "Pecan Culture," I infer that he has sold grafted trees, for he says:

"It costs no more to care for the grove of choice trees than of poor ones; then, again, the grafted or budded ones come into profitable bearing three years earlier than seedlings. Here is a case in point: Last November (1892) we paid, in cash, two hundred and forty-eight dollars for the nuts which grew upon one tree, the crop of one year. The tree is twenty inches through at its base, and forty-five feet high; such a size tree would grow in twenty or twenty-five years. Now small nuts from the same size tree will sell for not more than fifteen to twenty dollars. Another tree only ten years old bore thirteen and a half dollars worth. These choice nuts are such as we grow seedlings from; we sell a great many more seedlings than we do grafted or budded trees, simply because they are so much cheaper, and people in general do not realize that such a vast difference exists between the profits of seedling and grafted or budded trees; but such is the case, and such it will always remain for aught we can see."

Soon after I published the description of the Hales' Paper-shell hickory in 1870, requests for cions were received from nurserymen and many amateur horticulturists, who were anxious to try their skill in grafting this excellent variety. Mr. Hales generously responded, and sent cions to a large number of correspondents in various parts of the country, because he was desirous of having the variety preserved and propagated. During the following ten years the old original tree was kept pretty well pruned, in filling orders for cions; those sent to nurserymen were to be raised on shares, one-half of all the successfully grafted trees to be returned to Mr. Hales. Being a near neighbor, my opportunities for keeping informed as to the result of this arrangement was all that I could desire. To one nursery firm in central New York Mr. Hales sent about one thousand cions per annum for four successive years, and in return received just four feeble grafted plants as his share of the total product of the four thousand cions. But as the four plants received soon died, he closed that account as one of total loss. Previously, however, he had sent a quantity of cions to Mr. J. R. Trumpy, of the Kissena Nurseries, Flushing, N. Y., whose skill as a propagator of ligneous plants is probably second to that of no man in this country; the result proved that our faith in the man was not misplaced, for Mr. Hales received for his share of the experiment something over two dozen grafted trees, and most of these are now handsome specimens ten to twenty feet high. Just what percentage of the cions set were made to unite and grow I have not been informed, but the experiment was, doubtless, rather unsatisfactory as a commercial transaction.

In addition to the plants sent to Mr. Hales, there have been quite a number distributed among the customers of the nurseries named; consequently, we are pretty well assured of the perpetuation of this remarkably fine variety, even when the original tree succumbs to old age, or should it be accidentally destroyed. I am inclined to give Mr. Trumpy credit for being the first man to graft the shellbark hickory in this or any other country, and make the cions unite and grow, for I have failed to find any instance of success in this mode of propagating these trees, prior to his with the Hales' Paper-shell.

In reply to a note sent him a few months since, asking: "How did or do you graft the hickories?" he replied as follows:

"I put the hickory stocks in pots in the spring, and graft them the following spring, say in April, and in the house. The cions are cut during the winter, so as to keep them in good order until wanted for use. I find it is better to operate in April than earlier in the winter. I also graft them out of doors about the beginning of May, when the stocks are growing. They will succeed very well out of doors, provided the stocks are large enough for the cions. Any kind of grafting will do, but crown grafting is the best. I have not done much of late in the way of grafting hickories in the nursery, not having suitable stocks; besides, when the weather becomes warm enough for outside work, vegetation pushes far too rapidly to give a man a chance to do much of this kind of grafting."

Since the above was written and while these pages were being put in type, Mr. Jackson Dawson, of the Arnold Arboretum, Jamaica Plain, Mass., has given his method of grafting the hickories, in Garden and Forest, Feb. 19, 1896, as follows:

"My method," writes Mr. Dawson, "has been to side-graft, using a cion with part of the second year's wood attached, binding it firmly and covering it with damp sphagnum until the union has been made. The best time I have found for the operation under glass has been during February, and the plants have been kept under glass until midsummer, and wintered the first year in a cold frame. In all the genera I find certain species which may be called free stocks,—that is, stocks which take grafts more readily than others. Thus, nearly all the oaks will graft readily on Quercus Robur; the birches will graft more easily on Betula alba than on others; so of the hickories, observation has led me to believe that the best stock is the bitternut, Hicoria minima. This species grows almost twice as rapidly as the common shagbark hickory, and while young the cambium is quite soft. I should advise anyone who wishes to propagate hickories on a large scale to grow stocks of this species in boxes not more than four inches deep. In this way all the roots can be saved and there will be no extreme taproot, and when shaken out of the boxes the plants are easily established in pots and ready for grafting. If taken up in the ordinary way from the woods, it requires almost two years to get them well rooted, and often the stocks die for want of roots after the grafts have really taken. If grown in rich soil, the stocks will be large enough to use in one or two years. I should then pot them early in the fall, keeping them from heavy frosts, and bringing them into the house about the first of January, and as soon as they begin to make roots. I should side-graft them close to the collar and plunge them in sphagnum moss, leaving the top bud of the graft out to the air. The graft ought to be well united about the last of March, when the plants should be taken from the sphagnum and set in the body of the house to finish their growth."

All who have had any experience in the propagation of trees by grafting in spring, are well aware of the flight of time, in the hurry of work that must be done in a few days or not at all. It is true that the season for grafting may be prolonged or extended a little by cutting the cions in winter and storing them in a cool, moist place, where they remain dormant after vegetation has started in the open air; but this does not affect the stocks, and these may come on slowly or rapidly, varying with the seasons, and the grafter must not only watch for opportune moments, but take his chances of striking the right time and conditions, in order to be successful. With such hard wood trees as the hickories it is better to be a little ahead of time than a few days too late, for frosts, and even quite a severe freeze, will not injure a dormant cion, and under the most favorable conditions the union between stock and cion is a rather slow process. For this reason I advise giving as much time as possible, and while I do not claim to having had any personal experience as a grafter, in the South, still I am inclined to think that grafting in the fall, and not later than December, would be preferable to later in winter or spring. By giving the cion and stock two or three months in which to form granulations and cohesion, there would be more certainty of success. Of course, I now refer to what is called crown grafting on the root below the surface of the ground, and when the cion is fixed in place with the usual ligatures of waxed paper or cloth, the soil is drawn back into place and the cion entirely covered with it, but very lightly over the terminal bud.

Where small stocks are not at hand, the roots of large trees may be severed and the end partly lifted towards the surface, as shown in Fig. 68, and when grafted, allowed to remain in position until the following season, and then taken up entire or with roots enough to insure future growth. The same or a similar process may be practiced to propagate a choice variety of the hickory, and a mere severing of the roots will insure the production of suckers from near the severed end, as shown in Fig. 69.

In grafting isolated stocks in this way, a small or large stake should be placed by the side of each, to indicate their position, and also protect them from being trampled upon. I make this suggestion because, in my own experience, it has often proved successful with various kinds of hard-wooded trees and shrubs that failed when grafted in the spring. Here in the North it is rather difficult, as well as expensive, to protect cions set in the open ground in the fall; but in the South it is different, and a handful of almost any coarse litter would be sufficient to prevent severe freezing.

But grafting in the fall in the open ground is unnecessary, where small seedling stocks are used in the propagation of any kind of tree; in fact, nurserymen do very little grafting of this kind in spring, for they learned, by long experience, that the most economical and certain method of multiplying such trees is to take up the stocks in the fall, and then graft them indoors during the winter, having stocks and cions stored in cool cellars or pits, where they will be readily accessible when wanted. Apples, pears, quinces, grapes, and many other kinds of hardy trees, shrubs and vines are now extensively propagated by grafting during the winter months, and I do not know of any good reason why the hickories and other closely allied nut trees should not be multiplied in this way. I have tried it, on a limited scale, with the shellbark hickories, and with fair success, and in my opinion it is the only way by which the hickories, including the pecan, can be multiplied cheaply enough to become of commercial importance.

The small stocks of one or two years old should be taken up in the fall, and then crown grafted any time from December to March in the Northern States, but the earlier the better; then pack away the grafted stocks in moss or soil, in a cool cellar, or heel-in elsewhere, as, for instance, in pits or frames, where they will not be frozen, and yet cool enough to prevent active growth.

In the spring the grafted stocks should be planted out in nursery rows, and deep enough to have the top of the cion just level with the surface after the soil has been settled about it by a shower or heavy rains. The plants must be handled with care, so as not to disturb the cions. Mulching will, of course, be beneficial in dry seasons, and especially if the stocks are set in ordinary well-drained soils. In selecting wood for cions, twigs of the previous season's growth are usually preferred, but it is not necessary, nor is it advisable to discard all except the extreme end of the shoot or that containing a terminal bud, as some writers have advised, to prevent rapid loss of moisture by evaporation, for a drop of wax will seal the end of a cion as thoroughly and effectually as a natural bud; besides, the lower part of the annual twigs is often more firm and really better for grafting than the upper and less sturdy wood, and the lateral buds on it will push just as readily as the terminal one. The cion may be three or four inches long, and contain two or more buds. The sealing of the upper end of a cion that is not protected by a terminal bud is certainly important with all of the hickories, for in this genus of trees the pith is large and continuous, not intersected or cut off by a thin partition of wood at the joints, as seen in many trees, shrubs and vines. This large and continuous pith in the hickories is another reason why the cions succeed best if set below the crown and in or on the fleshy roots having no pith. They may be set on one side, as in splice grafting, or in the center, or in a cleft made for their reception with a sharp knife, then bound with waxed paper, or wrapped with bass, raffia, or other similar material, and afterwards covered with melted wax to exclude air and water from the joints and wounds.

In this mode of grafting hickories it is not necessary to employ the entire root or stock, if it is of large size, for a single cion; for pieces of from six to twelve inches long, containing a few lateral fibers, will answer the purpose, and it will be found, in practice, that these sections of the large fleshy roots contain so much vitality that, if the cions set in them fail to grow, they will throw up sprouts from adventitious buds during the ensuing summer. Almost any fair-sized piece of root left in the ground, when digging up hickory trees large or small, is pretty certain to throw up sprouts, this not only showing their great vitality, but that propagation by root cuttings is perfectly practicable and may be utilized whenever and wherever it may be desirable. The man who attempts to raise hickories from root cuttings must have patience, for very frequently the cuttings will remain apparently dormant in the ground one entire season before the sprouts appear above the surface. I will also add that this slow or retarded germination frequently occurs with the nuts, especially if they have become somewhat dry before planting.

For commercial purposes root-grafting small stock, as described, during the fall and winter, gives promise of being the best and most practicable system of multiplying varieties; but there is much yet to be learned in regard to details, and hundreds of carefully conducted experiments may be necessary to determine the exact time, condition and mode of operation. It may be that very early grafting is better than late, or that we have not, as yet, found the best species for stocks, and that a half-ripened one will be preferable to one fully matured. Neither has it, as yet, been determined what kind of material is best in which to store the grafted roots: sand, soil or sphagnum (moss) from the swamps; or whether they should be kept very moist, or comparatively dry; very cold, or moderately warm. Here is a wide field for experiments, and a most interesting one; for the successful propagation of the hickories by any mode that will insure the perpetuation and rapid multiplication of varieties, means millions of dollars added to the wealth of the country.

Age of Fruiting.—We hear much of the precociousness of pecan trees in the South, and many are reported as coming into bearing at the age of six to ten years from the time of planting the nut; but these are probably exceptional instances of early fruiting and not the rule, although in a favorable soil and climate it is to be expected that such trees will push forward more rapidly than under less favorable conditions. Grafted trees will, of course, produce fruit in less time than seedlings, and as this mode of propagation becomes more general, and repeated in a direct ancestral line, the cions for each successive generation of trees being taken from mature or bearing specimens, the precocious and productive habit will eventually become intensified, as it has been in all of our long-cultivated fruit trees propagated by artificial methods. We have so intensified the productiveness of many kinds of cultivated fruits by selection, that it has become more of a fault, than a merit to be encouraged.

The nut trees are amenable to the same physiological laws as other kinds, and in their propagation by grafting with cions from bearing specimens we hasten maturity in the offspring. This has been fully demonstrated in many varieties of the Persian walnuts and European chestnuts. Here in the Northern States we have had so little experience with grafted hickories of any species, that really nothing is yet known as to how they will respond to this mode of propagation, further than that they grow rapidly and give promise of being fruitful. Seedling trees are, as a rule, of slow growth, rarely attaining a bearing age and size under twenty years, and with the shellbarks thirty or forty years usually pass before anything like a crop of nuts is gathered. Something may be gained, in the way of time, by frequent transplantings and pruning, but more by grafting seedlings from old and mature trees. Two grafts of the Hales' hickory commenced bearing at the age of sixteen years.

Planting for Profit.—There are, doubtless, many thousands of acres of half-denuded woodlands in almost every State in the Union, both North and South, that could be readily utilized for growing hickory timber, and much of such lands is almost useless for other purposes; but timber culture and forestry is a subject which I have discussed elsewhere,[1] while the object of this work is to aid my readers in producing something that may be utilized as food. When the hundreds and thousands of miles of our public highways are shaded with hickory and other nut-bearing trees of the best species and varieties, it will be time enough to begin planting such kinds elsewhere. As roadside trees they cannot fail to be profitable, largely enhancing the value of adjoining land; for in addition to being equally as ornamental as other kinds, they yield fruit always in demand at remunerative prices. The three species of the hickory and their varieties recommended for cultivation all thrive best in moist soils, but by occasional watering or thorough mulching they will succeed almost anywhere, especially in naturally dry locations.

Insect Enemies.—The hickories, as with all other nut-bearing trees, have numerous insect enemies, but these are neither so numerous nor destructive as to seriously interfere with their growth in general, or with their productiveness. Insects may occasionally become exceedingly numerous in certain localities for a few years, then suddenly or slowly disappear; but this we must expect, as one of the coexisting phases of all agricultural pursuits.

Collectively the hickories have no considerable number of destructive insect enemies, but if we count all the species of the various orders that have been found occasionally, or otherwise, feeding on the leaves, buds, fruit, twigs, bark, or boring in the solid wood, they make a very formidable list of names, or about one hundred and seventy-five in all; but fully ninety per cent. of these depredators are scarcely known, except to a few professional entomologists, and unless they become more destructive in the future than they are at present, or have been in years past, nut culturists have little to fear from their depredations. Among the most common species of insects injurious to the hickory, the following may prove most annoying to the cultivator.

The hickory-twig girdler (Oncideres cingulatus. Say).—A small yellowish-gray beetle, a little less than an inch long, usually appearing in this latitude during August, the females depositing their eggs in the twigs of from a quarter to a half-inch in diameter. On old large trees the loss of a few or many of these is scarcely noticed; but on young seedlings or grafted stock it is quite a different affair, for on such plants the females usually select the leader in preference to the lateral twigs in which to deposit their eggs. The female girdles the twigs for the purpose of providing proper and acceptable food for her progeny; that is, first the green, then the slowly drying, then the perfectly hard, seasoned hickory or whatever kind she may have attacked. Selecting a suitable twig, she rests upon it, usually with head downward (Fig. 70), and with her mandibles cuts out a ring of bark about one-twelfth of an inch wide, and deep enough to reach the firm wood underneath. The place selected for this annular incision may be only a few inches from the terminal bud, or a foot below it, and in some instances she will cut two incisions on the same twig some distance apart, but usually there is only one on a twig. While cutting this incision she will sometimes rest long enough from her labors to deposit an egg in the bark above. The number of eggs she deposits in the twig is probably variable, but three full-grown grubs is the most I have ever found, and the larger proportion examined had only one. This girdling of the twig prevents the flow of sap, and the leaves soon wither and drop off, and the bark and wood shrivel and become hard and dry; but in the meantime the eggs have hatched and the minute grubs have bored their way through the soft bark and reached the pith, feeding in this while acquiring size and strength of jaws that will enable them to consume more solid food later and during the succeeding winter, spring and summer. Some do not reach maturity until the second summer; at least, in this latitude, as I have found after very careful observation and while collecting many hundreds of specimens. I will say, however, that this insect is usually referred to by entomologists as rather rare, and in general it is, but some years ago, in an old clearing near by where there was a great number of young hickory seedlings and sprouts, it was for a season or two very abundant; then it suddenly disappeared, and I have not taken a half-dozen specimens since. The grubs bore out the wood in the infested twig, and in most instances so completely as to leave only a thin shell of the wood or bark, by the time they have reached maturity and are ready to pass into their imago or perfect-winged stage.

This species of twig girdler also attacks the apple, pear, persimmon, elm, and other kinds of trees, and with those like the apple, with a soft and brittle wood, the girdled twigs are frequently broken off by the winds; but this rarely occurs with the hickories, and we can usually find the stumps remaining on the trees years after the beetles have emerged. The only way to keep this pest in check is to cut off and burn the girdled twigs any time before the larvÆ have reached maturity, and as the girdled dead twigs are readily seen, the gathering is not difficult, from medium-sized trees.

The painted hickory borer (Cyllene pictus. Drury).—This is, perhaps, one of the most common and widely distributed of all the hickory borers, but, so far as my observations have extended, it rarely attacks young or healthy trees of any age; in fact, I have never found it in or about growing trees, but I have seen it, by the thousands, breeding in decaying specimens and in hickory cordwood cut during the winter months and ranked up in shady places. A hickory tree cut down in fall or winter, and left on the ground or cut up into cordwood, is pretty sure to attract this borer early in spring, the females swarming over the bark, depositing their eggs upon it, and by the ensuing autumn the wood will be fairly honeycombed if this insect is at all abundant. The general color of the beetle is black, and the size as shown in Fig. 71. There are three narrow, whitish bands across the top of the thorax, and one slightly broader band at the extreme point of the wing-covers; but the next band is in the form of an inverted V; the point of the ? does not quite touch the broad lateral band, as in the closely allied species known as the locust borer (C. robiniÆ), with which it is often confounded; besides, in the latter the markings are of a deep yellow, and not white or of a faint yellowish tinge. The hickory borer always appears in spring, and the locust borer in the fall, not later than September in this part of the country. Below or behind the V-shaped band there are three others, but all broken up into mere dots, and not continuous.

In the South, and especially in Texas, there is a somewhat smaller but closely allied species (Cyllene crinicornis) that attacks the pecan tree and its wood in the same way as our common hickory borer, but in the Southern or Southwestern species the bands on the wing-covers are all interrupted or broken up into small white spots or dots. I have no remedy to suggest, further than to cut down old, infested trees, and to haul the wood out into the sun and spread it out where it will quickly dry and become seasoned. If the felled tree and wood is stripped of its bark as soon as cut, the female beetles will not deposit their eggs upon it.

There are other long-horned beetles (CerambycidÆ) that are occasionally found breeding in the hickories, and among these may be named the Belted Chion (Chion cinctus), Tiger Goes (Goes tigrinus), Beautiful Goes (Goes pulchra), and the Orange Sawyer (Elaphidion inerme), but they are usually quite too rare to be considered as very destructive insects.

Hickory-bark borer (Scolytus 4-spinosus. Say).—Only once within my memory has this minute but destructive beetle appeared in any considerable numbers in my neighborhood, although I have occasionally received a few specimens from correspondents in various parts of the country, even as far west as the Pacific coast in Washington. This borer is a very small, cylindrical, dark brown beetle, about one-fifth of an inch or less in length, and one-sixteenth in diameter. The hind part of the body is quite blunt (truncate), the males having four short but distinct blunt spines, two on each side, projecting from the hind part of the abdomen, hence the name "4-spinosus." In the females these spines are absent, otherwise they closely resemble the males. These bark borers usually appear here in the Northern States the last of June or early in July, and both sexes attack hickory trees of all species, but appear to prefer the old and nearly mature trees to the young and small with thinner bark. After boring through the bark and reaching the soft cambium layer underneath, upon which these insects feed, the female cuts a vertical channel in this substance, of little over an inch in length.

This burrow is a little larger than the diameter of her body, and along on both sides she deposits her eggs, to the number of ten to thirty, placing about an equal number on each side. When these eggs hatch, the young larvÆ begin to feed on the soft material by which they are surrounded, making minute burrows at first, and at nearly right angles with the parent one; but as they increase in size they are forced to diverge, those above the center working upward, and those below downward, as shown in Fig. 72. These burrows enlarge as the grubs increase in size, as shown, most of them reaching their full development by the time cold weather sets in, but some do not cease feeding until spring, then pass to the pupal stage, and later to the perfect or beetle form, and from the extreme end of these burrows they bore a hole straight out to the surface, and are then ready to begin the cycle of life again, either on the tree from which they have emerged, or others near by. Some fifteen years ago I noticed that the leaves of some of the old hickory trees on my place were turning yellow prematurely, and upon examination I found the bark perforated with minute holes not larger than small bird shot, indicating the presence of the bark borer under consideration. Seven of the very largest and, presumably, the oldest, appeared to be affected, and these were immediately cut down and stripped of their bark, exposing the little grubs to the air and attacks of insect-eating birds. These trees appeared to have been infested for several years, as there was scarcely a spot on the surface of the wood that had not been scarified with this pest. Since the destruction of these trees I have not been troubled with bark borers, although there are still a number of very old and large hickories thriving in the same grove. The only remedy I can suggest is to cut down infested trees as soon as they are discovered, and also encourage the insect-eating birds to remain in and near the nut groves.

There are several other species of bark borers that occasionally attack hickories, one of these, the Chramesus icoriÆ, Leconte, infests the small twigs, while another, the Sinoxylon basilare, say, after boring through the bark, continues its course far into the heartwood, showing a preference for this kind of food instead of the living tissues. These pests, however, are rarely constant, but very erratic, in their attacks, and while they may be rather abundant on a few or many trees a season or two, they then disappear, and not one may be seen for several decades.

The hickory-shuck worm (Grapholitha caryana. Fitch).—The parent of this pest is a minute moth of the family TortricidÆ, the small caterpillars mining and boring the green husks, and sometimes into the immature shell, causing the nuts to wither and drop off prematurely, although an occasional one may reach maturity, even in its scarified condition. This insect appears to be somewhat rare in the East, but very abundant some years in the West, where it is frequently destructive to the thick shellbark hickory and pecan. The first fresh specimens of the Nussbaumer Hybrid pecan nut (referred to on a preceding page) were so badly bored and scarified by this worm when received, that they would have been nearly or quite worthless for either planting or other purposes. As this insect attacks the nuts on the very largest trees in the forest and elsewhere, I cannot suggest any other remedy than to gather the immature and infested nuts as they fall, and burn them, with their contents.

Among the larger Lepidoptera (butterflies and moths) there are many species, the caterpillars of which occasionally feed on the leaves of the hickories, but not exclusively; consequently, they cannot be considered as the special enemies of this genus of trees. When they do attack them, it is as much due to accident as design. This is certainly true with the great Luna moth (Attacus luna) and the American silk worm (Telea polyphemus), and various species of the Catocala, as well as the Tent caterpillar (Clisiocampa sylvatica).

There is also a hickory-nut weevil, closely allied to the species infesting the chestnut; and while not quite as large, its habits are similar, and its ravages may be checked by the same or similar means. The grubs bore into the green nuts, causing some to fall before half-grown; others may remain in the nuts until they are ripe and gathered in the autumn; consequently, perforated hickory nuts are not at all rare, even on the stands of venders in our cities.

Bud worms, leaf miners, leaf rollers and plant lice,—and among the latter several gall-making species,—are to be found on the hickories; but with all these natural enemies to contend with, the hickories thrive, grow, and yield their fruits in greater or less abundance. To enumerate, describe and illustrate all the insects known to be enemies of the hickory would require a large volume, but fortunately there are many special works published on the insects injurious to vegetation, and these are readily obtainable by all who may have occasion to consult their pages.

---