. An illustrated flora of the northern United States, Canada and the British possessions, from Newfoundland to the parallel of the southern boundary of Virginia, and from the Atlantic Ocean westward to the 102d meridian. Botany; Botany. Genus 6. APPLE FAMILY. 331 72. Crataegus Douglasii Lindl. Douglas' Thorn. Fig. 2406. Crataegus punctata Jacq. var. ? brevispina Dougl.; Hook. Fl. Bor. Am. i : 201. 1832. C Douglasii Lindl. Bot. Reg. pi. iSio. 1835. C. brevispina Dougl.; Steud. Nom. Bot. Ed. 2: 431. 1841. A tree or shrub, sometimes 40° high; bark dark brown and scaly. Spines i'-i' long; twigs re
. An illustrated flora of the northern United States, Canada and the British possessions, from Newfoundland to the parallel of the southern boundary of Virginia, and from the Atlantic Ocean westward to the 102d meridian. Botany; Botany. Genus 6. APPLE FAMILY. 331 72. Crataegus Douglasii Lindl. Douglas' Thorn. Fig. 2406. Crataegus punctata Jacq. var. ? brevispina Dougl.; Hook. Fl. Bor. Am. i : 201. 1832. C Douglasii Lindl. Bot. Reg. pi. iSio. 1835. C. brevispina Dougl.; Steud. Nom. Bot. Ed. 2: 431. 1841. A tree or shrub, sometimes 40° high; bark dark brown and scaly. Spines i'-i' long; twigs reddish; leaves ovate to obovate, i'-2i' long, ¥-2l' wide, acute or obtuse at the apex, cuneate at the base, doubly serrate and lobed except near the base, dark green and appressed-pubes- cent above, glabrous beneath, subcoriaceous; petioles slightly winged, li'-i' long; corymbs many-flowered, glabrous or nearly so; flowers about 8" broad, calyx-lobes acute or acuminate, entire, villous above, tinged with red; stamens 10-20; anthers light yellow; styles and nutlets 3-5; fruit short-ellipsoid, 4" or 5" thick, dark purple, becoming black in drying; flesh soft, sweet; nutlets ear-shaped, roughly pitted on the innef f^^.'-^ Thunder Bay Island, Lake Huron and Ke- weenaw Peninsula, Mich.; Michipicoten Island, Lake Superior ; and far northwestward. May, June ; fruit ripe 73. Crataegus Phaen6pyrum(L. f.) Medic. Washington Thorn. Fig. 2407. Mespihts Phaenopyrum L. f. Suppl. 254, 1781 Crataegus cordata Ait. Hort. Kew. 2: 168. 1789. Not Mespilus cordata Mill. C. Phaenopyrum Medic. Gesch. Bot. 83. 1793. A shrub or small tree, i5°-30° high, with trunk diameter up to 1°. Branches strongly ascending; thorns numerous, ¥-2' long; leaves ovate-trian- gular, simply or doubly serrate, often 3-5-lobed, acute at the apex, rounded to cordate at the base, f'-3' long and wide, bright green above, glabrous; petioles V-2' long, slender; corymbs many-flow- ered, glabr
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Keywords: ., bookcentury1900, bookdecade1910, booksubjectbotany, bookyear1913
