. 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 . Caltha flabellifolia Pursh. Mountain Marsh-marigold. Fig. 1854. Caltha flabellifolia Pursh, Fl. .^m. Sept. 390. flabellifolia T. & G. Fl. N. A. Weak, slender, reclining or ascending, i°-ii° long, glabrous. Basal leaves 2-4' broad, long- petioled, flabelliform or reniform, with a wide open sinus; the upper sessile or short-petioled, similar or with truncate bases, a
. 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 . Caltha flabellifolia Pursh. Mountain Marsh-marigold. Fig. 1854. Caltha flabellifolia Pursh, Fl. .^m. Sept. 390. flabellifolia T. & G. Fl. N. A. Weak, slender, reclining or ascending, i°-ii° long, glabrous. Basal leaves 2-4' broad, long- petioled, flabelliform or reniform, with a wide open sinus; the upper sessile or short-petioled, similar or with truncate bases, all crenate or dentate; flow- ers yellow, 6"-9" wide, solitary or 2-3 together; sepals oval; achenes 4-10, about 4" long, com- pressed. In cold shaded mountain springs, Pocono plateau of Pennsylvania and northern New Jersey to Maryland and recorded from Xew York. Strikingly different from the preceding in habit and appearance. June- July. 3. Caltha natans Pall. Floating Marsh- marigold. Fig. 1855. Caltha natans Pall. Keise Russ. 3 : 284. 1776. Stems slender, floating or creeping in wet places, rooting at the nodes, 6'-i8' long, branching. Lower and basal leaves slender-petioled, cordate-reniform, 1-2' wide, crenate or entire, thin, cordate with a narrow sinus; upper leaves short-petioled, smaller; flowers white or pink, 5"-9" broad; sepals oval, ob- tusish; follicles several or numerous, rather densely capitate, about 2" long, the beak short and straight.
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Keywords: ., bookcentury1900, bookdecade1910, booksubjectbotany, bookyear1913
