| Page |
| Preface | 3 |
| Contents | 4 |
| Key to Genera | 7 |
| Pinaceae—The Pine Family | 13 |
| Salicaceae—The Willow Family | 14 |
| Juglandaceae—The Walnut Family | 15 |
| Betulaceae—The Birch Family | 16 |
| Fagaceae—The Beech Family | 17 |
| Urticaceae—The Nettle Family | 19 |
| Magnoliaceae—The Magnolia Family | 20 |
| Anonaceae—The Custard Apple Family | 20 |
| Lauraceae—The Laurel Family | 21 |
| Hamamelidaceae—The Witch Hazel Family | 21 |
| Platanaceae—The Plane Tree Family | 21 |
| Rosaceae—The Rose Family | 21 |
| Leguminosae—The Pulse Family | 22 |
| Rutaceae—The Rue Family | 23 |
| Simarubaceae—The Quassia Family | 23 |
| Anacardiaceae—The Cashew Family | 23 |
| Aquifoliaceae-The Holly Family | 24 |
| Aceraceae—The Maple Family | 24 |
| Sapindaceae—The Soapberry Family | 25 |
| Tiliaceae—The Linden Family | 25 |
| Araliaceae—The Ginseng Family | 25 |
| Cornaceae—The Dogwood Family | 25 |
| Ericaceae—The Heath Family | 25 |
| Ebenaceae—The Ebony Family | 26 |
| Styracaceae—The Storax Family | 26 |
| Oleaceae—The Olive Family | 26 |
| Caprifoliaceae—The Honeysuckle Family | 27 |
| White Pine | 29 |
| Pitch Pine | 31 |
| Table Mountain Pine | 33 |
| Yellow Pine | 35 |
| Jersey or Scrub Pine | 37 |
| Tamarack | 39 |
| Red Spruce | 41 |
| Hemlock | 43 |
| Balsam Fir | 45 |
| Arbor Vitae | 47 |
| Red Cedar | 49 |
| Black Willow | 51 |
| American Aspen | 53 |
| Large-toothed Poplar | 55 |
| Cottonwood | 57 |
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