. 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 . Rubus nigricans Rydb. berry. Fig. 2; Bristly Black- Riibus nigricans Rydb. in Britton, Man. 498. 1901. Stems erect or ascending, 2°-4° high, the older parts densely clothed with slender stiflt slightly reflexed bristles. Leaflets generally 5 in leaves of the sterile shoots, 3 in those of the flowering branches, obovate, mostly acute or short-acumi- nate, sometimes 4' long, s
. 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 . Rubus nigricans Rydb. berry. Fig. 2; Bristly Black- Riibus nigricans Rydb. in Britton, Man. 498. 1901. Stems erect or ascending, 2°-4° high, the older parts densely clothed with slender stiflt slightly reflexed bristles. Leaflets generally 5 in leaves of the sterile shoots, 3 in those of the flowering branches, obovate, mostly acute or short-acumi- nate, sometimes 4' long, short-stalked or sessile, green and glabrous on both sides; flowers 6"-9" broad, racemose; fruit small, sour. In dry or marshy soil. Quebec and northern New York to Michigan and eastern Pennsylvania. In- cluded in our first edition under Rubits setdsus Bigel., which appears to be a hybrid between this species and R. hispidus L. July-Aug. 12. Rubus frondosus BigeL Leafy-flow- ered Blackberry. Fig. 2299. Rubus frondosus Bigel. Fl. Bost. Ed. 2, 199. 1824. Fl. U. S. I: Stems erect or arching, 2j°-4° high, angled, bearing rather stout straight prickles, villous, especially when young. Leaves velvety-pubescent beneath, sparingly pubescent or glabrous above; leaflets elliptic to obovate, sharply serrate, acute or acuminate; racemes more or less elongated. the pedicels subtended by petioled, mostly uni- foliolate leaves (bracts) ; flowers about l' broad; petals broadly obovate: fruit subglobose, black, falling away before the subtending leaves. New York, Mostly in dry soil Ohio(?) and Virgini; Massachusetts May-June.
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Keywords: ., bookcentury1900, bookdecade1910, booksubjectbotany, bookyear1913
