. 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. 3o6 MALACEAE. Vol. II. Crataegus chrysocarpa Ashe. Round-leaved Thorn. Fig. 2361. Mespilus rotundifolia Ehrh. Beitr. 3: 30. 1788. Crataegus rotundifolia Borckh. in Roem. Arch, i': 87. 1798. Not Lam. Ency. i: 84. 1783. Crataegus chrysocarpa Ashe, Bull. N. Car. Agri. Coll. 175 ; 110. 1900. C. sheridana A. Nelson, Bot. Gaz. 34: 370. 1902. C. Doddsii Ramaley, Bot.
. 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. 3o6 MALACEAE. Vol. II. Crataegus chrysocarpa Ashe. Round-leaved Thorn. Fig. 2361. Mespilus rotundifolia Ehrh. Beitr. 3: 30. 1788. Crataegus rotundifolia Borckh. in Roem. Arch, i': 87. 1798. Not Lam. Ency. i: 84. 1783. Crataegus chrysocarpa Ashe, Bull. N. Car. Agri. Coll. 175 ; 110. 1900. C. sheridana A. Nelson, Bot. Gaz. 34: 370. 1902. C. Doddsii Ramaley, Bot. Gaz. 46 : 5 : 381. 1908. A beautiful round-topped shrub, or a tree occa- sionally 25° high, with numerous spines, l'-3' long. Leaves ovate-orbicular or obovate, li'-a' long, i'-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- 28. Crataegus Jackii Sargent. Fig. 2362. Jack's Thorn. C. Jackii Sarg. Rhodora 5 : 162. 1903. C. rotundata Sarg. Ont. Nat. Sci. Bull. 4: 61. 1908. A round-topped shrub, sometimes 15° high. Spines numerous, lY-iV long; leaves ovate-orbicular to obovate, acute at the apex, cuneate or rounded at the base, ii'-2i' long, i'-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
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Keywords: ., bookcentury1900, bookdecade1910, booksubjectbotany, bookyear1913
