. 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 . phosperma Engelm. DC. Prodi 1859. ma Boiss. Euphorbia cuphospe 2, 73. 1862. Poinsettia cuphosperma Small, Fl. SE. U. S. 721. 1903- Annual, usually sparingly pubescent. Stem erect, slender, simple, or sparingly branched, 8-15' high. Leaves opposite or alternate, linear, oblong, or Hnear- lanceolate, io"-3' long, entire, undulate, or denticu- late, narrowed into a slender
. 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 . phosperma Engelm. DC. Prodi 1859. ma Boiss. Euphorbia cuphospe 2, 73. 1862. Poinsettia cuphosperma Small, Fl. SE. U. S. 721. 1903- Annual, usually sparingly pubescent. Stem erect, slender, simple, or sparingly branched, 8-15' high. Leaves opposite or alternate, linear, oblong, or Hnear- lanceolate, io"-3' long, entire, undulate, or denticu- late, narrowed into a slender petiole; involucres crowded at the ends of the branches, nearly sessile, glabrous, or nearly so, nearly 2" long, bearing about 4 long-stalked unappendaged glands; capsule gla- brous, or sparingly pubescent, 2i" in diameter, seeds narrowly ovoid, about li" long, irregularly 4-angled, ridged and slightly tuberculate. South Dakota to Colorado and Mexico .^ug-Sept. 2. Poinsettia dentata (Michx.) Small. Toothed Spurge. Fig. 2767. Euphorbia dentata Fl. Bor. Am. 2 : 211. 1803. Poinsettia dentata Small, Fl. SE. U. S. 722. 1903- -Annual, dull green, pubescent. Stem erect or ascending, 8-15' high, somewhat woody below, branched, the branches mostly ascending; leaves opposite, or the lowest alternate, varying from ovate to nearly linear or orbicular-oblong, s"-zV long, coarsely dentate, narrowed into slender petioles, the nerves prominent beneath; involucres clustered at the ends of the branches, oblong- campanulate, about li" long, 3-S-lobed, bearing 1-4 yellowish short-stalked glands without ap- pendages: capsule glabrous, 2"-2l" in diameter; seeds ovoid or ovoid-globose, ash-colored, irregu- larly tuberculate, inconspicuously 4-angled. In dry or moist soil. Pennsylvania to South Da- kota, Wyoming, Tennessee, Louisiana and Mexico. July-Oct.
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Keywords: ., bookcentury1900, bookdecade1910, booksubjectbotany, bookyear1913
