Potentilla gracilis var. fastigiata (Nutt.) S. Wats.

Potentilla viridescens Rydb. Mem. Dep. Bot. Columbia
Univ. 2 : 69. 1898.
Perennial, with a cespitose caudex; stem 5-7 dm. high, sparingly silky with appressed or slightly spreading hairs, branched above; basal leaves several, with petioles 1-2 dm. long, digitate, with about 7 leaflets, silky but green above, silky and somewhat tomentulose but scarcely white beneath ; leaflets oblanceolate or spatulate, deeply toothed or divided nearly halfway to the midrib, with lanceolate often somewhat divergent teeth ; stem-leaves smaller, with short petioles ; cyme many-flowered, loose and open ; hypanthium silky, in fruit about 8 mm. in diameter ; bractlets lanceolate, a little shorter than the ovate-lanceolate sepals, both acuminate and about 5 mm. long; corolla 10-15 mm. in diameter, yellow; petals obcordate, equaling or slightly exceeding the sepals ; stamens about 20 ; pistils many ; styles filiform.
Type locality : [In the original description no type was designated, but the following is so designated in the herbarium of the N. Y. Bot. Garden :] Braggs Creek, Alberta, Macoun 16746.
Distribution : Valleys, Manitoba to Alberta and Wyoming.

Potentilla rectiformis Rydberg, sp. nov
Perennial, with the habit of P. recta and P. sulphurea ; stem 6-10 dm. high, densely strigose ; leaves, except those of the inflorescence, 7-foliolate ; petioles with appressed pubescence ; leaflets oblanceolate or spatulate, 4-6 cm. long, coarsely cut-toothed with lanceolate teeth curved forward, appressed-pubescent on both sides or glabrate above ; stipules ovate, deeply cut-toothed, 1.5-2 cm. long; inflorescence many-flowered, flat-topped ; hypanthium. strigose, in fruit 7-8 mm. broad ; bractlets linear-lanceolate, 5-7 mm. long, about equaling the ovate-lanceolate acuminate sepals ; petals obcordate, 6-7 mm. long; stamens about 20 ; pistils many ; styles filiform.
Type collected on grassy gravelly flats at Pullman, Washington, in 1896, A. D. E. Elmer 69, Distribution : Type locality and vicinity, also adjacent Idaho and Montana.

Potentilla nuttallii Lehm. Stirp. Pug. 9: 44. 1851
Poientilla recta Nutt. Gen. 1 : 310. 1818. Not P. recta I,. 1753.
Potentilla rigida Nutt. Jour. Acad. Phila. 7 : 20. 1834. Not P, rigida Wall. 1828.
Potentilla chrysaniha Lehm. in Hook. Fl. Bor. Am". 1 : 193. 1832. Not P. chrysantha Trev. 1818.
Potentilla gracilis rigida S. Wats. Proc. Am. Acad. 8: 557. 1873.
Potentilla gracilis chrysantha Rydb. Fl, Neb. 21 : 16. 1895.
Perennial, with a short rootstock ; stem 6-8 dm. high, stout, sparingly hirsute, branched above ; stipules lanceolate, acute, subentire ; basal leaves many, digitate, with about 7 leaflets, prominently veiny and sparingly hirsute, not at all tomentose beneath, green, usually glandular-granuliferous ; petioles 1-3 dm. long, pubescent with usually appressed hairs ; leaflets 5-10 cm. long, oblanceolate, toothed or divided nearly halfway to the midrib, with large triangular-divergent, acute teeth ; stem-leaves smaller and short-petioled ; cyme many-flowered ; hypanthium hirsute, in fruit about 1 cm. in diameter ; bractlets linear to lanceolate, generally shorter than the ovate-lanceolate, long-acuminate sepals, which are 5-7 mm. long; petals yellow, obovate, emarginate, 6-8 mm. long; stamens 20; pistils many; styles filiform.
Type locality : Fort Man dan [Dakota].
Distribution.: Mountain valleys from Saskatchewan to British Columbia, Colorado, and Oregon .

Potentilla blaschkeana Turcz. ; Lehm. Hamb. Gart
& Blumenz. 9 : 506. 1853.
Potentilla gracilis S. Wats. Bot. King's Expl. 8"8, in part. 1871. Not P. gracilis Dougl. 1829. Potentilla flab elliformis clenophora Rydb. Bull. Torrey Club 24 : 7. 1897. Potentilla ctenophora Rydb. Mem. Dep. Bot. Columbia Univ. 2 : 75. 1898.
Perennial, with a short caudex ; stem stout, 5-8 dm. high, sparingly silky, branched
above; stipules large, 1-2 cm. long, lanceolate or ovate-lanceolate, acute, the upper often
coarsely toothed ; basal leaves digitate, of about 7 leaflets, silky or nearly smooth and green
above, white-tomentose beneath, with petioles 5-15 cm. long ; leaflets about 5 cm. long,
obovate in outline, deeply cleft into linear or oblong divisions, often divergent ; stem-leaves
similar but smaller and short-petioled ; cyme many-flowered ; hypanthium silky, in fruit
often over 1 cm. in diameter ; bractlets oblong-lanceolate, often much shorter than the
broadly lanceolate or ovate, long-acuminate sepals, which are 5-6 mm. long ; corolla 15-20
mm. in diameter ; petals broadly obcordate, deeply notched at the apex, much longer than
the sepals ; stamens about 20 ; pistils numerous ; styles filiform.
Type locality : Russian Settlement [California] .
Distribution : Meadows, Alberta to British Columbia, northern California, and northern

Potentilla fastigiata Nutt.; T. & G. Fl. N. Am. 1 : 440. 1840
Potentilla holopetala fastigiata L,ehtn. Stirp. Pug. 9: 46. 1851.
Potentilla gracilis fastigiata S. Wats. Proc. Am. Acad. 8 : 557. 1873.
Potentilla Candida Rydb. Bull. Torrey Club, 24 : 6, in part, i. e. as to specimens cited. 1897.
Perennial, with a short caudex ; stem low, 1-3 dm. high, ascending, generally quite densely silky, rather simple; stipules ovate-lanceolate, often toothed, 0.5-1 cm. long; leaves on rather short petioles, digitate, with 5-7 leaflets, silky-villous with rather long hairs on both sides and slightly tomentose beneath ; petioles of the basal ones 2-5 cm. long, appressed white-silky ; leaflets obovate, 1-3 cm. long, coarsely crenate or somewhat incised with broad rounded-ovate or oblong-ovate teeth ; cyme usually rather dense ; hypanthium silky-villous, in fruit about 5-6 mm. in diameter; bractlets linear-lanceolate, shorter than the triangular-ovate acute sepals, which are about 5 mm. long; corolla 10-15 mm. in diameter ; petals broadly obcor date, a little exceeding the sepals ; stamens 20 ; pistils many ; styles filiform.
Type locality : Plains of the Rocky Mountains [probably Wyoming]. Distribution : Montana and Wyoming to Nevada and Utah.

Potentilla glomerata A. Nelson, Bull. Torrey Club
26: 480. 1899.
Potentilla Blaschkeana Rydb. Mem. Dep. Bot. Columbia Univ. 2 : 69, in part. 1898. Not. P. Blaschkeana Turcz. 1853.
Perennial, with a thick woody root and a short caudex ; stem stout, 4-8 dm. high, softly pubescent with appressed or slightly spreading hairs ; basal leaves digitately 7-foliolate ; petioles 1-2 dm. long, more or less pubescent with appressed or somewhat spreading hairs ; leaflets 4-8 cm. long, oblanceolate or narrowly obovate, cut-toothed with oblong, lanceolate, or triangular teeth, green but densely appressed-hairy above with short hairs, more or less tomentose beneath and silky on the veins ; stem-leaves similar but with shorter petioles ; inflorescence at first dense, congested, but later more open ; hypanthium silky, in fruit about 8 mm. broad ; bractlets oblong or lanceolate, shorter than the broadly lanceolate sepals, which are acuminate and 5-8 mm. long; petals rounded-obcordate, 6-8 mm. long ; stamens 20; pistils many; styles filiform.
Type locality: Bear River at Evanston, Wyoming.
Distribution : River bottoms, etc., Montana to Washington, California, and Wyoming.

Potentilla jucunda A. Nelson, Bull. Torrey Club 27 : 32. 1900
Perennial, with a more or less cespitose caudex ; stem slightly appressed-pubescent, slender, 4-7 dm. high ; basal leaves several, digitately 5-7-foliolate ; petioles 5-20 cm. long, slightly strigose ; leaflets 4-7 cm. long, obovateoblanceolate, green on both sides, nearly glabrous above, slightly appressed-silky beneath, coarsely serrate with lanceolate teeth ;
i
stem-leaves smaller, on shorter petioles or the uppermost sessile ; cyme open,manyflowered; hypanthium softly pubescent, in fruit about 7 mm. wide; bractlets linear-lanceolate, a little shorter than the broadly lanceolate sepals, which are 4-6 mm. long ; petals broadly obcordate, 8-10 mm. lopg ; stamens about 20; pistils many; styles filiform.
Type locality : Green Top, Laramie Hills, Wyoming. Distribution: Mountains from Montana to Colorado and Utah.

Potentilla etomentosa Rydb. Bull. Torrey Club 24: 8. 1897
Perennial, with a thick, somewhat cespitose caudex; stem 4-5 dm. high, slightly appressed-hairy, erect; stipules ovate to lanceolate, entire; leaves with long petioles, digitate, of about 7 leaflets, glabrate above, slightly silky-strigose beneath but without any trace of tomentum; leaflets elliptic-oblanceolate, 3-5 cm. long, crenate or serrate with ovate teeth ; hypanthium hirsute, in fruit 6 mm. broad ; bractlets oblong or lanceolate, a little shorter than the ovate pointed sepals, which are 4-5 mm. long ; petals obcordate, scarcely exceeding the sepals, 5-6 mm. long ; stamens 20 ; pistils many ; styles filiform.
Type locality : California.
Distribution : California and western Nevada.

Potentilla angustata Rydberg, sp. nov
Perennial, with a short rootstock and caudex ; stem slender, strict, about 8 dm. high, usually with ascending hairs; basal leaves digitately 5-7-foliolate ; petioles 1-1.5 dm. long, pubescent, with appressed or slightly spreading hairs ; leaflets narrowly oblanceolate, rather copiously hairy on both sides but green ; the middle one 4-6 cm. long ; the outer, especially if the leaves are 7-foliolate, small, 1-2 cm. long, cut-toothed with lanceolate teeth ; lower stem-leaves similar, the upper 3-foliolate and subsessile ; inflorescence few-flowered, with slender branches ; hypanthium silky, in fruit 6 mm. wide ; bractlets linear-lanceolate, about 3 mm. long ; sepals ovate-lanceolate, 5-6 mm. long, acuminate ; petals 6-7 mm. long, obovate, retuse ; stamens about 20 ; pistils many ; styles filiform.
Type collected on the Upper Sacramento River, California, 1894, F. H. Foster (herb. N. Y. Bot. Gard.).

Potentilla permollis Rydb. Bull. Torrey Club 28 : 175. 1901
A stout hoary perennial ; stems simple, about 6 dm. high, densely andV softly pubescent with long whitish hairs ; basal and lower stem-leaves usually 7-foliolate, digitate ; petioles about 1 dm. long, densely pubescent with spreading or refiexed hairs ; leaflets obovate tooblanceolate, obtuse, coarsely cleft nearly half way to the midrib, with lanceolate lobes, densely softpubescent on both sides, greenish above, whitish beneath ; upper stem-leaves 3-5-foliolate, similar, smaller, short-petioled ; stipules of the stem-leaves large, adnate to the petiole, ovate, often over 3 cm. long ; cyme rather open ; hypanthium and calyx densely white-pubescent; bractlets linear-lanceolate, about equaling the lanceolate sepals; petals yellow, 6-7 mm. long, obcordate, exceeding the sepals by about one fourth ; stamens about 20 ; pistils many ; styles filiform.
Type locality : Endicott, Whitman County, Washington. Distribution : State of Washington .