. 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. 43. ST. LAWRENCE THORN — Crataegus laurentiana Sargent This thom grows along the lower St. Lawrence River, and from northern Michigan to British Columbia, eastern Oregon and central Colorado. It is a many-branched shrub or a small tree sometimes 5 meters high, with ir- regular branches; the twigs are sUghtly hairy, soon becoming smooth, bright orange-brown, and bear stout chestnut-brown spines from 3 to 8 cm. long. The le
. 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. 43. ST. LAWRENCE THORN — Crataegus laurentiana Sargent This thom grows along the lower St. Lawrence River, and from northern Michigan to British Columbia, eastern Oregon and central Colorado. It is a many-branched shrub or a small tree sometimes 5 meters high, with ir- regular branches; the twigs are sUghtly hairy, soon becoming smooth, bright orange-brown, and bear stout chestnut-brown spines from 3 to 8 cm. long. The leaves are oblong to oblong- ovate^ sharply or bluntly pointed at the apex, strongly wedge-shaped at the base, sharply and doubly toothed, with three to five pairs of pointed. Fig. 433. — St. Lawrence Thorn. lobes, 3 to 8 cm. long, to 4 cm. broad, slightly hairy, particularly along the veins when young, becoming smooth, except along the veins beneath, half- leathery, dark green above, paler beneath; leaf-stalks slightly winged toward the apex, hairy, becoming smooth, 1 to 2 cm. long. The flowers are about 15 mm. broad, in many-flowered, whitish woolly-hairy corymbs; calyx-tube densely white woolly-hairy, the lanceolate, long-pointed lobes hairy or nearly smooth, glandular- toothed; stamens about 10; anthers small, pale pink; styles 4 or 5. The fruit ripens in September, is oblong, dark crimson, slightly hairy, about 10 mm. long, its calyx-lobes reflexed, persistent; the flesh is yellow, becoming soft, succulent. Please note that these images are extracted from scanned page images that may have been digitally enhanced for readability - coloration and appearance of these illustrations may not perfectly resemble the original Britton, Nathaniel Lord, 1859-1934; Shafer, John Adolph. New York : H. Holt and Co.
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Keywords: ., bookcentury1900, bookdecade1900, bookpublishernewyorkhholtandco
