8 
flabelliformis, but the plant is more delicate and the pubescence is 
silky and rather scant. Specimens: 
Arizona: ¥E. Palmer, no. 145, 1877. Wyoming: C. E. Shel- 
don, no. 72, 1884; Fremont, 2d exp. JJontana: Robert Adams, 
1871. Utah: 1.. F. Ward, no. 119, 1875; M.E. Jones, no. 5554d 
and 35544, 1894; no. 765, 1880; Mrs. Thompson, no. 195, 1873. 
v POTENTILLA ETOMENTOSA N. Sp. 
Potentilla rigida Newberry, Pac. R. R. Rep. 6: Part 3. 72. 
Not Nutt. 
Potentilla gracilis rigida Coville, Cont. U. S. Nat. Herb. 4: 96. 
1893. 
Stem 4-5 dm. high, slightly hairy, erect, ‘eit a stout caudex; 
stipules ovate, lanceolate, entire; leaves on long petioles, digi- 
tate, of about 7 leaflets, glabrate above, slightly silky-strigose be- 
neath but without any trace of tomentum; leaflets obovate, 3-5 
cm. long, crenate or serrate with ovate teeth ; calyx hirsute; bract- 
lets oblong, a little shorter. than the ovate pointed sepals ; petals 
obcordate, scarcely exceeding the sepals. . 
This resembles mostly P. pulcherrima but is perfectly without 
tomentum and only slightly hairy. It resembles P. Nuttal/i only 
in the lack of tomentum. It has the crenate, obovate leaves of 
P. pulcherrima, and if not held distinct must be regarded as a va- 
riety thereof. The distribution is quite different, P. pulcherrima 
not having been collected in California. The following are the 
specimens seen: ; 
Califoimia.:: Fremont, no. 162, 1846 (Type); J. S. Newberry 
(Williamson Expedition); Munson & Hopkins, 1889; Coville & 
Funston, no. 1399, 1891. 
PotentittA Nourraryiu Lehm. Ind. Sem. Hort, Bot. Hamb. 1852: 
12. 1852. 
Potentilla recta Nutt. Gen. 1: 310. 1818. Not-L. 
_~ Potentilla ngida Nutt. Journ. Acad. Phila. 7: 20. 1834, Not 
Wall. 
Potentilla gracilis rigida Wats. Proc. Am. Acad. 7: 557. 1873. 
The general habit of this species resembles that of P. Blasch- 
keana, but the plant is green, without tomentum and coasely hir- 
sute. The distribution is from Colorado to es hobece dt : 
Columbia and Saskatchewan. 
