. 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. Cock-Spur Thorn 449 about 6 mm. thick, red, the persistent calyx-lobes reflexed; its flesh is yellow, mealy, insipid; nutlet i, slightly pointed at the apex, ridged lengthwise. Also called English hawthorn. Whitethorn, May hawthorn and May. 2. COCK-SPUR THORN — Oratsegus Crus-galli Linnaeus This species occurs from the vicinity of Montreal, Canada, southward along Lake Champlain to Connecticut, Virginia, and through the A
. 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. Cock-Spur Thorn 449 about 6 mm. thick, red, the persistent calyx-lobes reflexed; its flesh is yellow, mealy, insipid; nutlet i, slightly pointed at the apex, ridged lengthwise. Also called English hawthorn. Whitethorn, May hawthorn and May. 2. COCK-SPUR THORN — Oratsegus Crus-galli Linnaeus This species occurs from the vicinity of Montreal, Canada, southward along Lake Champlain to Connecticut, Virginia, and through the Appalachian foothills to northern Georgia and Alabama and westward through southern Ontario and southern Michigan to Missouri. It is a tree sometimes 8 meters high, with stout and spreading branches; the bark is grayish brown, scaly; the twigs are smooth, light brown to gray, and usually bear straight or shghtly curved, chestnut-brown spines from 3 to 8 cm. long. The leaves are obovate to eUiptic, 2 to 12 cm. long, i to 3 cm. widej pointed or rounded at the apex, wedge-shaped and entire at the base, sharply toothed toward the apex, smooth, thin, but becoming leathery, dark green and shining above, paler beneath; leaf-stalks wing- margined towards the apex, 5 to 20 mm. long. The flowers are about 15 mm. wide, numerous in smooth corymbs; the calyx-lobes are linear, long-pointed, smooth or slightly short- hairy; stamens about 10; anthers pink; styles i to 3. The fruit ripens late; it is short-oblong to subglobose, about 15 mm. long, duU red,the calyx- lobes reflexed; fleshgreenish,firm,dry, containing i to 3 (usually 2) nutlets, 8 to 9 mm. long, strongly ridged on the back, the nest of nutlets 7 to 9 mm. thick. if This species is very variable. C. prunijolia Poiret is a broad-leaved va-. FiG. 391. — Cock-Spur Thorn. riety, occurs from southern Ontario to southern Michigan and south to Pennsylva- nia; variety pyracanthijolia Alton has narrower leaves, slightly pubescent when you
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