Pomaceæ
Apple Family

Trees and shrubs with alternate leaves, and regular, perfect flowers; calyx superior, 5-toothed; petals 5; stamens numerous; fruit a more or less fleshy pome.

Leaves pinnate. Sorbus.
Leaves simple, entire-toothed or lobed.   Amelanchier.

Sorbus sambucifolia (Cham. and Schl.) Roem Western Mountain-ash.

A small tree with smooth bark. Leaves pinnate, leaflets 5—15, ovate-lanceolate or oval, obtuse or short-pointed, serrate, smooth and dark green above, pale and usually more or less hairy beneath, especially along the veins, seldom over 2½ inches long. Flowers white, nearly ½ an inch across in a compound flat cyme, 2—4 inches broad; petals spreading, short-clawed, obovate; stamens numerous; fruit bright scarlet, more than ¼ of an inch in diameter.

In moist stony ground throughout the region; flowering in June.

Amelanchier alnifolia Nutt. North-western June-berry.

A shrub, soft-hairy when young, at length nearly smooth. Leaves thick, broadly elliptic or almost orbicular, very obtuse and often truncate at the apex, round or subcordate at the base; coarsely dentate above the middle. 1—2 inches long. Flowers in rather short, dense racemes, pedicels short; petals oblanceolate, ¼—¾ of an inch long, 2—4 times the length of the calyx; fruit purple when ripe and very sweet.

On slopes at the lower altitudes throughout the region, flowering in June.