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. . 26. DRYAS L. Sp. PL 501. 1753. Low tufted herbaceous shrubs, with simple petioled stipulate leaves white-canescentbeneath, and white or yellow, rather large perfect solitary flowers on slender scapes. Calyxpersistent, not bracted, its tube concave, , 8-9-lobed. Petals 8 or 9, obovate,larger than the calyx-lobes. Stamens », inserted on the throat of th
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. . 26. DRYAS L. Sp. PL 501. 1753. Low tufted herbaceous shrubs, with simple petioled stipulate leaves white-canescentbeneath, and white or yellow, rather large perfect solitary flowers on slender scapes. Calyxpersistent, not bracted, its tube concave, , 8-9-lobed. Petals 8 or 9, obovate,larger than the calyx-lobes. Stamens », inserted on the throat of the calyx; filaments subu-late. Carpels », sessile, inserted on the dry receptacle; style terminal, persistent, elongatedand plumose in fniit. Seed ascending, its testa membranous. [Name Latin, a wood-nymph.] Three species, natives of the cold-temperate and arctic parts of the north temperate zone. Typespecies : Dryas oclopetala L. Flowers white ; sepals linear. Leaves oval or ovate, coarse!)- crenate. i. D. oclopetala. Leaves ovate, or ovate-lanceolate, subcordate, entire or nearly so. 2. D. inlegrifolia. Flowers yellow; sepals ovate; leaves crenate. 3. I. Dryas octopetala L. WhiteMountain Avens. Fig. 2284. Dryas octopetala L. Sp. PI. 501. chamaedrifotia Pers. Syn. 2: 57. 1807. Stems prostrate, woody at the base,branched, 3-6 long. Stipules linear, ad-rate to the petiole; leaves oval or ovate,coarsely crenate all around, green and gla-brous above, densely white-canescent be-neath, generally obtuse at each end, I-llong; scape terminal, erect, i-5 long,pubescent; flower white, about l broad;sepals linear, acute or acutish, glandular-piibescent, persistent; st>le about 1 long,plumose and conspicuous in fruit. and Greenland and throughoutarctic .America, south in the Rocky Mountainsto Ltah. Colorado, and to British in arctic and alpine Europe and . betony. June-.\ug. 274 ROSACEAE.
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Keywords: ., bookcentury1900, bookdecade1910, booksubjectbotany, bookyear1913
