Inflorescence.—May. Sterile and fertile flowers on the same tree, appearing when the leaves are fully grown,—sterile at the base of the season's shoots, or sometimes from the lateral buds of the preceding season, in slender, pendulous catkins, 3-4 inches long, usually in threes, branching umbel-like from a common peduncle; scale 3-lobed, hairy-glandular, middle lobe about the same length as the other two but narrower, considerably longer toward the end of the catkin; stamens mostly 5, anthers bearded at the tip: fertile flowers on peduncles at the end of the season's shoots; calyx 4-lobed, pubescent, adherent to the ovary; corolla none; stigmas 2.

Fruit.—October. Single or in twos or threes at the ends of the branchlets, abundant, usually rather small, about 1 inch long, the width greater than the length; occasionally larger and somewhat pear-shaped: husk separating about to the middle into four segments, with sutures prominently winged at the top or almost to the base, or nearly wingless: nut usually thin-shelled: kernel white, sweetish at first, at length bitter.

Horticultural Value.—Hardy throughout New England; grows almost anywhere, but prefers a rich, loamy or gravelly soil. A most graceful and attractive hickory, which is transplanted more readily and grows rather more rapidly than the shagbark or pignut, but more inclined than either of these to show dead branches. Seldom for sale by nurserymen or collectors. Grown readily from seed.

Plate XXVII.—Carya amara.

1. Winter bud.
2. Flowering branch.
3. Sterile flower, back view.
4. Sterile flower, front view.
5. Fertile flower.
6. Fruiting branch.

BETULACEÆ. BIRCH FAMILY.

Ostrya Virginica, Willd.