. 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 102nd meridian. Botany. Mespilus rotundifolia Ehrh. Beitr. 3: 30. 17S8. Crataegus rotundifolia Borckh. in Roem. Arch, i': 87. 1798. Not Lam. Ency. 1: 84. 1783. Crataegus chrysocarpa Ashe, Bull. N. Car. Agri. Coll. 175: no. 1900. C. sheridana A. Nelson, Hot. Gaz. 34: 370. 1902. C. Doddsii Ramaley, Hot. Gaz. 46: 5 : 381. 1908. .\ beautiful round-topped shrub, or a tree occa- sionally 25° high,
. 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 102nd meridian. Botany. Mespilus rotundifolia Ehrh. Beitr. 3: 30. 17S8. Crataegus rotundifolia Borckh. in Roem. Arch, i': 87. 1798. Not Lam. Ency. 1: 84. 1783. Crataegus chrysocarpa Ashe, Bull. N. Car. Agri. Coll. 175: no. 1900. C. sheridana A. Nelson, Hot. Gaz. 34: 370. 1902. C. Doddsii Ramaley, Hot. Gaz. 46: 5 : 381. 1908. .\ beautiful round-topped shrub, or a tree occa- sionally 25° high, with numerous spines, 1-3' long. Leaves ovate-orbicular or obovate, i V-2' long, S'-2i' wide, acute at the apex, broadly cuneate at base, doubly serrate with rather coarse teeth and with 3 or 4 pairs of acute lobes, subcoriaceous, dark yellow- green and shining above, slightly pubescent or gla- brous ; corymbs pubescent or glabrous; flowers 7" or 9" broad; stamens .5-10; styles and nutlets usually 3 or 4; calyx-lobes lanceolate, acuminate, usually entire but glandular-margined; fruit depressed- globose to short-ovoid, about 5" thick, red; flesh soft; calyx-lobes reflexed. Nova Scotia and New Brunswick to Saskatchewan, south to North Carolina. Nebraska, and in the Rocky Mts. to New Mexico. May; fruit ripe August-Sep- tember. 28. Crataegus Jackii Sargent. Jack's Thorn. Fig. 2362. C. Jackii Sarg. Rhodora S : 162. 1903. C rotundata Sarg. Ont. Nat. Sci. Bull. 4 : 61. 1908. A round-topped shrub, sometimes 15° high. Spines numerous, li'-2i' long; leaves ovate-orbicular to obovate, acute at the apex, cuneate or rounded at the base, ii'-2j' long, 1-2' wide, doubly serrate, lobes very shallow, dull dark green above, slightly pubescent becoming glabrate above, paler and glabrous beneath; corymbs slightly vil- lous; flowers io"-i2" broad: calyx glabrous, its lobes sharply glandular-serrate; stamens 5-10; anthers yellow; styles and nutlets 2 or 3; fruit ovoid-ell
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Keywords: ., bookcentury1900, bookdecade1910, booksubjectbotany, bookyear1913
