Deciduous shrubs or medium-sized trees. Twigs moderate, round or slightly angled, sometimes ending in sharp points; pith somewhat angled, continuous. Buds moderate, solitary, sessile, with about 4 scales. Leaf-scars alternate, linear; bundle-traces 3; stipule scars none.
Fig, 131. Pyrus communis.
Fig. 132. Pyrus malus.
Fig. 133. Pyrus coronaria.
Twigs and buds glabrous; bud-scales submucronate, not margined; twigs olive
Buds pubescent, their scales sometimes margined
b. Buds blunt-ovoid; scales sub-obtuse; unarmed
b. Buds conical-oblong; scales acute; and twigs sharp-pointed
1. P. communis L. Pear. Small tree, to about 15 m. high, when wild often with spinescent branches; branchlets olive,glabrous or giabrate, with inconspicuous lenticels. Introduced from Eurasia, spreading slightly from cultivation into thickets (Fig. 131).
2. P. malus L. Apple. (Malus pumila Mill.). A tree to 15 m. tall, with spreading branches, the trunk sometimes 1 m. in diameter; twigs more or less pubescent; buds blunt-ovoid, pubescent; scales more or less obtuse. Introduced from Eurasia, spreading and naturalized (Fig. 132).
3. P. coronaria L. Wild Crabapple.( Malus coronaria Mill.). Tree, somewhat armed (at least bearing sharp-pointed twigs), 6-10 m. high, the trunk 2. 5-3. 5 dm. in diameter; twigs glabrate; bundle-traces 3; buds conical-oblong, scales pubescent, acute. Thickets, New York and Ontario to Minnesota, south to Kansas and North Carolina (Fig. 133).