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; 2nd ed. . llowing typicalone is tlie only known American species. I. Sibbaldia procumbens L. 2257. Sihbahiia procumbens L. Sp. PI. 284. 175,?. Potcniilla procumbens Clairv. Man. Herb. Suisse 166. 1811. Densely tufted, stem woody, decumbent or creeping,a few inches long. Stipules membranous, lanceolateor ovate-lanceolate, adnate; leaves 3-foliolate; petiolesslende
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; 2nd ed. . llowing typicalone is tlie only known American species. I. Sibbaldia procumbens L. 2257. Sihbahiia procumbens L. Sp. PI. 284. 175,?. Potcniilla procumbens Clairv. Man. Herb. Suisse 166. 1811. Densely tufted, stem woody, decumbent or creeping,a few inches long. Stipules membranous, lanceolateor ovate-lanceolate, adnate; leaves 3-foliolate; petiolesslender, 2-^ long; leaflets obovate or oblanceolate,cuneate at the base, 3-s-toothed at the apex, pubescentwith scattered hairs on both sides, resembling in out-line those of Sibbaldiopsis tridenlata; peduncles axil-lary, nearly naked, about equalling the leaves; flowersyellow, about 2i broad, numerous; petals oblong oroval, vcrj- small; calyx-lobeS oblong-ovate, acute, longerand broader than the bractlets. Summits of the White Mountains : Mt. .\Ibcrt, Quebec;Labrador. Greenland, arctic .ierica to .-Maska, south inthe Rocky Mountains to Colorado and Utah and to Cali-fornia. Also in arctic and alpine Europe and .Asia. 13. SIBBALDIOPSIS Rydb. Mem. Dep. Hot. Col. Univ. 2: 187. 1898. A depressed tufted shrub with thick trifoliolate leaves and small white flowers in ter-minal cymes. Calyx-tube nearly flat. Bractlets, calyx-lobes and petals 5. Petals obovate,rounded, not clawed. Stamens about 20. borne in 3 series near the base of the receptacle;filaments filiform; anthers cordate. Receptacle hemispheric, bearing numerous pistils. Stylefiliform, lateral. Achenes swollen, villous. Seed amphitropous, ascending. [Greek, froiu thesimilarity of this plant to Sibbaldia procumbens.] A monotypic genus of eastern North America.
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Keywords: ., bookcentury1900, bookdecade1910, booksubjectbotany, bookyear1913
