. Selected western flora : Manitoba, Saskatchewan, Alberta . Botany; Botany; Botany. RANUNCULACE^ 45 * Aquatic. t Petals white. 1. R. aquatilis, L. White Water Crowfoot. Leaves finely dissected, submerged, collapsing when withdrawn from the water. Common in stagnant or glow-running water, 2. R. circinatus, Sibthorp. Resembling the preceding but the leaves with broad stipules and rigid, not collapsing when taken from the water. A rarer form but not uncommon Fig. 38. — Flower of a in the prairie region. Buttercup in ft Petals yellow. 3. R. delphinifdlius, Torr. Yellow Water
. Selected western flora : Manitoba, Saskatchewan, Alberta . Botany; Botany; Botany. RANUNCULACE^ 45 * Aquatic. t Petals white. 1. R. aquatilis, L. White Water Crowfoot. Leaves finely dissected, submerged, collapsing when withdrawn from the water. Common in stagnant or glow-running water, 2. R. circinatus, Sibthorp. Resembling the preceding but the leaves with broad stipules and rigid, not collapsing when taken from the water. A rarer form but not uncommon Fig. 38. — Flower of a in the prairie region. Buttercup in ft Petals yellow. 3. R. delphinifdlius, Torr. Yellow Water Crowfoot. Leaves either floating or immersed, all repeatedly 3-forked into long thread-like divisions. Common in slow-running water, but continuing to grow in the mud if the water dries up, in which case the leaves are not cut, and the flowers are smaller. (B. mvltifidus, Pursh.) ** Terrestrial, but often growing in wet places. X Creeping. 4. R. cymbalaria, Pursh. Seaside Crowfoot. Smooth, spreading by means of long runners; scapes several-flowered; leaves rounded, crenate, and clustering at the base. Very common in low places, preferring alkaline soil," 5. R. Flammula, var. reptans, (L.) Mey. Creeping Spearwort. Stem slender, creeping, rooting at the joints, pubescent or glabrous; peduncles erect; leaves linear or nearly so, usually entire, narrowing into petioles; flowers small, solitary, bright yellow, the petals greatly exceeding the calyx; achenes flattened, beaked. Sandy shores of lakes and rivers, 6. R. repens, L. Creeping Bdttercup. Stem creeping and rooting at the joints; leaves 3-parted or 3-lobed, the divisions or lobes variously cut or toothed, usually more or less pubescent, sometimes spotted with white; flowers large, yellow. Low ground and along ditches or streams. " Numerous places on the great ;—Macoun. "Swamps, foothills of Rooky ; —^Dawson. H Erect, or nearly so. 7. R. scelerStus, L.
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Keywords: ., bookcentury1900, bookdecade1910, booksubjectbotany, bookyear1915
