. North American trees : being descriptions and illustrations of the trees growing independently of cultivation in North America, north of Mexico and the West Indies . Trees. Long-Spined Thorn 479 lobes linear, long-pointed, smooth on the outside, slightly long-hairy on the inside, remotely glandular-toothed; stamens 10 to 20; anthers pink; styles 2 to 4. The fruit, which ripens the last of September, is oblong to nearly round, about 10 mm. thick, cherry-red; the flesh is yellow, mealy, soft and acid; it contains 2 to 4 nutlets, 5 to 7 nun. long, S to 7 mm. thick, ridged on the back, the inner
. North American trees : being descriptions and illustrations of the trees growing independently of cultivation in North America, north of Mexico and the West Indies . Trees. Long-Spined Thorn 479 lobes linear, long-pointed, smooth on the outside, slightly long-hairy on the inside, remotely glandular-toothed; stamens 10 to 20; anthers pink; styles 2 to 4. The fruit, which ripens the last of September, is oblong to nearly round, about 10 mm. thick, cherry-red; the flesh is yellow, mealy, soft and acid; it contains 2 to 4 nutlets, 5 to 7 nun. long, S to 7 mm. thick, ridged on the back, the inner faces having a shallow pit, but the pit is sometimes faint or wanting on individual nutlets. Cratagus scabrida Sargent is a form commonly having about ten stamens and with the upper surface of the leaves rougher. This occurs in New England and New York. Cratagus Egglestoni Sargent is a 10-stamened form with sUghtly pubescent corymbs and rounder leaves. This is the most common form of the Green Moun- tains and perhaps of the Adirondacks, ascending to nearly 800 meters in the Green Mountains. Cratagus cyclophylla Sargent appears to be a 20-stamened form. 47. LONG-SPINED THORN —Crataegus macracantha Loddiges This species grows on rich hillsides, commonly on hmestone, from Nova Scotia south through New England to Pennsylvania and west along the Great Lakes to southeastern Minnesota and northern Illinois. It is a tree sometimes 6 meters high, with ascending and wide-spreading branches, forming an irregular broad crown; the bark is gray; the twigs are smooth, shining, chestnut-brown, with numerous chestnut-brown curved spines from 4 to 10 cm. long. The leaves are rhombic-ovate to obovate, from 3 to 8 cm. long, to 6 cm. wide, slightly hairy on the lower surface, sometimes a Ut- tle hairy above when young, be- coming smooth except along the veins beneafh, pointed at the apex, wedge-shaped at the base, doubly toothed, with lobes toward the apex, dark green and shining above, pale
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