C. flàva.
10. Cratæ̀gus flàva, Ait. (Yellow or Summer Haw.) Leaves small, wedge-obovate, unequally toothed and cut above the middle; on short petioles; the teeth, stipules and petioles glandular. Flowers mostly solitary, white, large (¾ in). May. Fruit usually pear-shaped, quite large (¾ in. long), yellow or greenish-yellow, sometimes tinged or spotted with red, pleasant-flavored. Ripe in autumn. A low spreading tree, 15 to 20 ft. high. Virginia, south and west, in sandy soil.
Var. pubescens is downy-or villous-pubescent when young, and has thicker leaves and larger and redder fruit.
Genus 39. AMELÁNCHIER.
Small trees or shrubs with simple, deciduous, alternate, sharply serrate leaves; cherry-blossom-like, white flowers, in racemes at the end of the branches, before the leaves are fully expanded. Fruit a small apple-like pome; seeds 10 or less, in separate cartilaginous-coated cells.
A. Canadénsis.
Amelánchier Canadénsis, Torr. & Gray. (Shad-bush. Service-berry.) A very variable species with many named varieties. The leaves, 1 to 3½ in. long, vary from narrow-oblong to roundish or cordate; bracts and stipules silky-ciliate. Flowers large, in drooping racemes, in early spring, with petals from 2 to 5 times as long as wide. Fruit globular, ½ in. broad, purplish, sweet, edible; ripe in June. It varies from a low shrub to a middle-sized tree, 5 to 30 ft. high.
Order XIX. HAMAMELÍDEÆ.