. 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. ROSACEAE. Vol. II. I. Sibbaldiopsis tridentata (Soland.) Rydb. Three- toothed Cinquefoil. Fig. 2258. Potentilla tridentata Soland. in Ait. Hort. Kew. 2: 216. 1789. Sibbaldiopsis tridentata Rydb. Mem. Dep. Bot. Col. Univ. 2: Tufted, woody at the base, much branched, branches erect, 1-12' high, pubescent with appressed hairs. Stip- ules lanceolate, entire; leaves mostly
. 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. ROSACEAE. Vol. II. I. Sibbaldiopsis tridentata (Soland.) Rydb. Three- toothed Cinquefoil. Fig. 2258. Potentilla tridentata Soland. in Ait. Hort. Kew. 2: 216. 1789. Sibbaldiopsis tridentata Rydb. Mem. Dep. Bot. Col. Univ. 2: Tufted, woody at the base, much branched, branches erect, 1-12' high, pubescent with appressed hairs. Stip- ules lanceolate, entire; leaves mostly petioled, 3-foliolate; leaflets of the lower one oblanceolate, 3-toothed or some- times 2-s-toothed at the obtuse apex, cuneate at the base, coriaceous, dark green and shining above, pale and mi- nutely pubescent beneath, i'-i' long: upper leaflets lin-. car or oblong, often acute and entire; flowers 1-6, in a ter- minal cyme, white, 3"-s" broad; bractlets shorter and narrower than the ovate acute calyx-lobes, which are shorter than the obovate-oval petals. In roclcy places, especially on mountains, Greenland to New Jersey, on the higher southern Alleghanies, shores of Lake Superior, and west to Manitoba. Mountain five-finger. June- Aug. Recorded from Scotland, apparently erroneously. 14. DASIPHORA Raf. Aut. Bot. 167. 1838. Shrubs with firm unequally pinnate leaves, scarious sheathing stipules, and large mostly yellow flowers. Calyx-tube saucer-shaped. Bractlets, calyx-lobes and petals 5. Petals rounded, not clawed. Stamens about 25, in S clusters around the hemispheric receptacle; filaments filiform; anthers flat. Pistils numerous on the receptacle; style club-shaped, glan- dular above, lateral; stigmas lobed. Achenes densely covered with long straight hairs. Seeds amphitropous, ascending. [Greek, bearing hairs, referring to the hairy achenes and receptacle.] â About five species, natives of the north temperate and arctic zones. Only the following typical one occur
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Keywords: ., bookcentury1900, bookdecade1910, booksubjectbotany, bookyear1913
