. 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. 26. DRYAS L. Sp. PI. 501. 1753. Low tufted herbaceous shrubs, with simple petioled stipulate leaves white-canescent beneath, and white or yellow, rather large perfect solitary flowers on slender scapes. Calyx persistent, not bracted, its tube concave, glandular-hirsute, 8-9-lobed. Petals 8 or 9, obovate, larger than the calyx-lobes. Stamens m, inserted on the throat o
. 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. 26. DRYAS L. Sp. PI. 501. 1753. Low tufted herbaceous shrubs, with simple petioled stipulate leaves white-canescent beneath, and white or yellow, rather large perfect solitary flowers on slender scapes. Calyx persistent, not bracted, its tube concave, glandular-hirsute, 8-9-lobed. Petals 8 or 9, obovate, larger than the calyx-lobes. Stamens m, inserted on the throat of the calyx; filaments subu- late. Carpels «;, sessile, inserted on the dry receptacle; style terminal, persistent, elongated and plumose in fruit. 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. Type species : Dryas octofetala L. Flowers white ; sepals linear. Leaves oval or ovate, coarsely crenate. 1. Leaves ovate, or ovate-lanceolate, subcordate, entire or nearly so. 2. D. integrifolia. Flowers yellow ; sepals ovate ; leaves crenate. 3. D. I. Dryas octopetala L. White Mountain Avens. Fig. 2284. Dryas octopetala L. Sp. PI. 501. 1753. Dryas chamaedrifolia Pers. Syn. 2: 57. 1807. Stems prostrate, woody at the base, branched, 3'-6' long. Stipules linear, ad- nate 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'-i' long; scape terminal, erect, i'-5' long, pubescent; flower white, about i' broad; sepals linear, acute or acutish, glandular- pubescent, persistent; style about i' long, plumose and conspicuous in fruit. Labrador and Greenland and throughout arctic .America, south in the Rocky Mountains to Utah, Colorado, and to British Columbia. Also in arctic and alpine Europe and Asia. Wild betony. Please note that these ima
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Keywords: ., bookcentury1900, bookdecade1910, booksubjectbotany, bookyear1913
