. 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. EUPHORBIACEAE. Vol. 2. Tithymalus obtusatus (Pursh) Kl. & Garcke. Blunt-leaved Spurge. Fig. 2754. Eufhorbia oblusala Pursh, Fl. Am. Sept. 606. rUhyiuahis obliisatus Kl. & Garcke, Abh. Akad. Ber. 1859: 69. Annual, yellowish green, glabrous. Stem slender, erect or assurgent, l°-2° high, strict, branched above, topped by a 3-rayed umbel; branches simple or f
. 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. EUPHORBIACEAE. Vol. 2. Tithymalus obtusatus (Pursh) Kl. & Garcke. Blunt-leaved Spurge. Fig. 2754. Eufhorbia oblusala Pursh, Fl. Am. Sept. 606. rUhyiuahis obliisatus Kl. & Garcke, Abh. Akad. Ber. 1859: 69. Annual, yellowish green, glabrous. Stem slender, erect or assurgent, l°-2° high, strict, branched above, topped by a 3-rayed umbel; branches simple or forked; leaves, except the whorl, subtending the umbel, scattered, spatu- late-oblong, obtuse, serrulate to below the middle, sessile, the base slightly auricled; in- volucres short-peduncled, i" long, bearing 4 stalked unappendaged glands; capsule subglo- bose, nearly 2" in diameter, with elongated warts, tlie lobes rounded; seeds lenticular, oblong, or orbicular-oblong, dark brown, faintly reticulated. In dry soil, Pennsylvania to Iowa, Kansas, South Carolina and Texas. Warted spurge. March-July. 3. Tithymalus platyphyllus (L.) Hill. Broad-leaved Spurge. Fig. 2755. Euphorbia fhlvthylla L. Sp. PI. 460. 1753- T. plalyphylius Hill, Hort. Kew. 172/4. 1768. Annual, glabrous or nearly so. Stems mostly erect, slender, 4-20' high, terete, often reddish, topped by a usually S-rayed umbel; the branches forked or umbellately branched; leaves except the whorl at base of the umbel, scattered, oblong or spatulate-oblong, io"-is" long, acute, serrulate, ses- sile, the base slightly auricled; bracts triangular- ovate or reniform, mucronate, often entire; invo- lucres very thin, campanulate, nearly l" long, ses- sile, bearing 4 sessile glands without appendages; capsule subglobose, about 2" in diameter, with de- pressed warts, the lobes rounded; seeds lenticular, oblong or nearly orbicular, smooth, brown. Along the shores of the St. Lawrence River and the Great
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Keywords: ., bookcentury1900, bookdecade1910, booksubjectbotany, bookyear1913
