An illustrated flora of the 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 ed2illustratedflo02brit Year: 1913 Genus 14. SPURGE FAMILY. 409 I. Dichrophyllum marginatum (Pursh.; Kl. & Garcke. White-margined Spurge. Fig. 2748. Euphorbia marginala Pursh, Fl. Am. Sept. 607. 1814. Dichrophyllum marginatum Kl. & Garcke, Monatsb. Akad. Ber. 1859: 249. Annual, bright green, glabrous or pubescent. Stem rather stout, erect. 10-3° tal
An illustrated flora of the 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 ed2illustratedflo02brit Year: 1913 Genus 14. SPURGE FAMILY. 409 I. Dichrophyllum marginatum (Pursh.; Kl. & Garcke. White-margined Spurge. Fig. 2748. Euphorbia marginala Pursh, Fl. Am. Sept. 607. 1814. Dichrophyllum marginatum Kl. & Garcke, Monatsb. Akad. Ber. 1859: 249. Annual, bright green, glabrous or pubescent. Stem rather stout, erect. 10-3° tall, somewhat channelled, usually pilose, topped by a mostly 3-rayed umbel; leaves except the whorl subtend- ing the umbel, scattered, ovate to obovate, 10 '-3^' long, entire, sessile; rays of the umbel forked; bracts large, white-margined; involucres cam- panulate. often clustered, 2' long, usually pubes- cent, bearing 3 glands subtended by white reni- form appendages; capsule depressed-globose, 3' in diameter, usually pubescent, the lobes rounded ; seeds ovoid-globose, terete, about 2' long, dark ash-colored, reticulate-tuberculate. In dry soil, Minnesota to Colorado, south to Texas. Introduced into waste places in the Central and Atlantic States. Snow-on-the-mountain. Varie- gated spurge. Mountain snow. May-Oct. 15. TITHYMALOPSIS Kl. & Garcke. Monatsb. Akad. Ber. 1859: 249. Perennial herbs, with tough rootstocks and glabrous or pubescent foliage. Stems soli- tary or tufted, topped by several-rayed umbels. Leaves alternate or scattered below the umbels, thence opposite or whorled, entire, more or less leathery, inclined to. be revolute. Involucres sessile or peduncled, few and remote, or in rather close clusters and numerous; lobes toothed or fimbriate Glands sessile or stalked, with white, pink or rose petal-like appendages. Capsule exserted, sometimes conspicuously so, often broader than high; lobes rounded. Seeds narrowed upward, more or less conspicuously punctate, wit
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