POTENTILLA ETOMENTOSA El. sp.
Potentilla rigia'a 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, from 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. pulclieniina but is perfectly without tomentum and only slightly hairy. It resembles P. Nuttallii only in the lack of tomentum. It has the crenate, obovate leaves of P. Iticherrinia, and if not held distinct must be regarded as a va riety thereof. The distribution is quite different, P. puickerrinia not having been collected in California. The following are the specimens seen : Califon a : Fremont, no. 162, 1846 (Type); J. S. Newberry (Williamson Expedition); Munson & Hopkins, 1889; Coville & Funston, no. 1399, 1891.