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. . acute veined sepalsand the lanceolate bractlets; stamens 20-25; stylethickened below; achenes glabrous. Coast of Newfoundland and Labrador to HudsonBay, Quebec and New Hampshire. June-July. 22. Potentilla pennsylvanica L. PrairieCinquefoil. Fig. 2248. Potentilla pcnnsyhanica L. Mant. 76. 1767. P. pennsylvanica strigosa Pursh, Fl. Am. Sept. 356. 1814. P. strigosa Pall.
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. . acute veined sepalsand the lanceolate bractlets; stamens 20-25; stylethickened below; achenes glabrous. Coast of Newfoundland and Labrador to HudsonBay, Quebec and New Hampshire. June-July. 22. Potentilla pennsylvanica L. PrairieCinquefoil. Fig. 2248. Potentilla pcnnsyhanica L. Mant. 76. 1767. P. pennsylvanica strigosa Pursh, Fl. Am. Sept. 356. 1814. P. strigosa Pall.; Tratt. Ros. Monog. 4:31. 1824. Slcm generally erect, 15-30 high, tomcntose andmore or less villous. Stipules ovate, often muchdivided; leaves pinnately S-ij-foliolate, grayishlomentose beneath, glabrous above; leaflets oblongor oblanceolate, cleft halfway to the midrib intooblong lobes, margins scarcely revolute; cymes dense,the branches erect; petals yellow, obovate, truncateor slightly emarginate, about equalling the ovatetriangular acute sepals and the lanceolate bractlets;stamens 20-25; style thickened below; achenes gla-brous. On plains, Hudson to the Yukon, British Colum-bia, Kansas and New Mexico. Summer. 7. 25S ROSACEAE. Vol. II. 8. ARGENTINA Lam. Fl. Franc. 3: 118. 1778. Perennial herbs, with slender stolons, interruptedly pinnate leaves, the flowers solitary,axillary, peduncled. short and broad. Bractlets, sepals and petals 5, or oftenmore. Petals yellow, not clawed. Stamens 20-25, borne around the base of the hemi-spheric receptacle; filaments filiform. Pistils numerous on the receptacle; style lateral,filiform. Achenes with thick pericarp. Seeds ascending, amphitropous. [Latin, referringto the silvery white pubescence of the under side of the leaves.] About 8 species, natives of the north temperate and subarctic zones. Besides the following,4 others occur in western North America. Type species: Argentina vulgaris Lam. I. Argentina Anserina (L.) Ry
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Keywords: ., bookcentury1900, bookdecade1910, booksubjectbotany, bookyear1913
