POTENTILLA PECriN ISECTA n. sp.
Stem slender, 3-4 dm. high, ascending, finely strigose or hir sute ; stipules ovate, often toothed ; leaves on slender petioles, digitate, of 5-8 leaflets, apressed-silky on both sides and sometimes slightly tomentulose beneath ; leaflets obovate, deeply pectinately divided into oblong or linear segments ; cyme rather dense; calyx appressed-silky; bractlets linear-lanceolate,shorter than the broadly lanceolate sepals ; petals yellow, obcordate, scarcely exceeding the sepals.
It has ,gone under the names of P. flabelliformis and fastigiata. It resembles P. fastikiata in general habit and pubes
cence, but is more slender. The form of the leaflets is most like that of P. Maschkrana and E Aruttallii, and sometimes that of P.
fabelliforinis, but the plant is more delicate and the pubescence is silky and rather scant. Specimens : Arthona : E. Palmer, no. 145, 1877. : C. E. Shel don, no. 72, 1884 ; Fremont, 2d exp. Montana : Robert Adams, 1871. Utah : L. F. Ward, no. 119, 1875 ; M. E. Jones, no. 5554d and 35544, 1894; no. 765, 188o; Mrs. Thompson, no. 195, 1873.