P. Americàna.
7. Pỳrus Americàna, DC. (American Mountain-ash.) Leaflets 13 to 15, lanceolate, bright green, nearly smooth, taper-pointed, sharply serrate with pointed teeth. Leaf-buds pointed, glabrous and somewhat glutinous. Flowers white, 1/3 in., in large, flat, compound cymes. In June. Fruit berry-like pomes, the size of small peas, bright scarlet when ripe in September, and hanging on the tree till winter. A tall shrub or tree, 15 to 30 ft. high, in swamps and mountain woods; more abundant northward. Often cultivated for the showy clusters of berries in autumn.
P. sambucifòlia.
8. Pỳrus sambucifòlia, Cham. & Schlecht. (Elder-leaved Mountain-ash.) Leaflets oblong, oval or lance-ovate, obtuse (sometimes abruptly sharp-pointed), usually doubly serrate with rather spreading teeth, generally pale beneath. Leaf-buds somewhat hairy. Flowers and berries larger, but in smaller clusters, than the preceding species. The berries globose when ripe, 1/3 in. broad, bright red. This species, much like Pyrus Americana, is found wild in northern New England and westward.
P. aucupària.
9. Pỳrus aucupària, Gaertn. (European Mountain-ash, or Rowan-tree.) Much like Pyrus Americana, but the leaflets are paler and more obtuse, with their lower surface downy. Leaf-buds blunter and densely covered with hairs. Flowers larger, ½ in. or more in diameter. Fruit also much larger, sometimes nearly ½ in. in diameter. Beautiful tree, 20 to 30 ft. high, often cultivated.
Genus 38. CRATÆ̀GUS.