POTENTILLA SAXIMONTANA n. sp.
Densely cespitosc ; stems several, 1-3-flowered, less than 5 cm. long, silky pubescent. Basal leaves numerous, pinnate with 2-3 often approximate pairs of leaflets, silky pubescent and some what tomentose beneath, short-petioled ; leaflets deeply dissected into oblong obtuse or acute segments; flowers about i cm. in diameter; calyx densely silky ; bractlets oblong, obtuse, shorter than the broadly ovate-triangular sepals ; petals broadly obcor date, much longer than the sepals; stamens about 20; style nearly terminal, about equalling the smooth achene.* It somewhat resembles the preceding, but is still more cespi tose, has much broader sepals and larger leaves, which have much shorter petioles. The leaves resemble somewhat those of
P. pinnatiserta (\Vats.) Aven Nelson (P. ovina Macoun), but are slightly tomentose. The flowers are much larger and the sepals much broader than in that species. It resembles also somewhat P. Somme/jilt/I, but has much more dissected leaves, and the style is different. The following specimens have been examined : Colorado: John Wolf, no. 366, 1873 (Wheeler's expedition, type); Hooker & Gray, 177 (Torrey's Peak); Knowlton, no. 19, 1896 (Pike's Peak).