This small tree or bush thrives in Hawaii, and yields good crops. It requires a sandy, rocky soil, and does well in the shaded valleys. However, it is attacked by scale pests and root fungus, and many valuable trees are destroyed in this way. The dark green, shiny leaves are oval or elliptical, and emit an agreeable odor when bruised. The fragrant flowers are small, white, with an occasional tinge of pink. The fruit is small, varying in shape from round to elliptical. The light yellow skin is oily and very bitter, and the pulp is juicy and sour. The picture representing this fruit shows several varieties, forms and shapes: those on the left being the Mexican type, those on the upper right the Kusai lime, the latter much resembling a mandarin orange in shape, and has a loose skin, but the pulp is very juicy and exceedingly sour. This lime has become very popular in Hawaii, grows readily from seed, and produces true. To Mr. Henry Swinton is due the credit of introducing this variety in 1885 from Kusai, or Strong's Island, Micronesia.