338 NORTH AMERICAN FLORA [VoLUME 22. 
126. Potentilla minutifolia Rydb. Bull. Torrey Club 23: 399, 1896, 
Cespitose perennial ; stems about 1 dm. long, slender, 1- or 2-leaved, sparingly silky or- 
nearly glabrous, slightly striate; stipules ovate-lanceolate, the lower scarious and brown ; 
basal leaves very small, with slender petioles 3-5 cm. long, silky-hirsute, slightly grayish 
beneath, pinnate with two pairs of leaflets, the upper pair and the sessile odd leaflet about 
5 mm. long, the lower pair only 2-3 mm.; leaflets obovate, incised, with oval rounded seg- 
ments; flowers 1 or 2, about 15 mm. in diameter; hypanthium sparingly hirsute, in fruit 
7-8 mm. in diameter; bractlets oblong, usually obtuse, about half as long as the oblong- 
lanceolate, obtuse or acutish sepals, which are about 4 mm. long; petals obcordate, about a. 
half longer than the sepals; stamens about 20; pistils many; styles filiform. 
TYPE LOCALITY: Pike’s Peak, Colorado. 
DISTRIBUTION : Mountains of Colorado. ; : 
ILLUSTRATIONS: Bull. Torrey Club 23: p/. 275, f. 6-10; Mem. Dep. Bot. Columbia Univ. 2: 
pl. 42, f. 6-10. : 
127. Potentilla saximontana Rydb. Bull. Torrey Club 
23: 399. 1896. 
Densely cespitose perennial; stems several, 1-3-flowered, less than 1 dm. long, silky- 
pubescent; basal leaves numerous, pinnate with 5-7 often approximate leaflets, silky- 
pubescent and somewhat tomentose beneath, short-petioled; leaflets deeply dissected 
into oblong, obtuse or acute segments; flowers 1-1.5 cm. in diameter; hypanthium densely 
silky ; bractlets oblong, obtuse, shorter than the broadly ovate-triangular sepals, which are 
about 4 mm. long; petals broadly obcordate, 5-7 mm. long, much longer than the sepals;, 
stamens about 20; style nearly terminal, about equaling the smooth achene. 
TYPE LOCALITY : Colorado. 
DISTRIBUTION : Mountains of Colorado. 
ILLUSTRATIONS: Bull. Torrey Club 23: p/. 277, f. 6-10; Mem. Dep. Bot. Columbia Univ. 2 
pl. 43, f. 6-10, 
128. Potentilla filicaulis (Nutt.) Rydb. Bull. Torrey 
Club 24: 2. 1897. 
Potentilla effusa filicaulis Nutt.; T. & G. Fl. N. Am. 1: 437. 1840. 
Cespitose perennial; stems several from the caudex, erect or ascending, 1 dm. high or 
less. ,silky-strigose, few-leaved; stipules ovate-lanceolate, acute, 5-10 mm. long; basal 
leaves many, pinnate with 2or 3 pairs of approximate leaflets, or subdigitately 5~7-foliolate,. 
densely silky on both sides and slightly tomentose beneath; leaflets cuneate, 1~2 cm. long, 
coarsely serrate with ovate teeth; stem-leaves small; cyme few-flowered; hypanthium 
white-silky, in fruit 4-5 mm. in diameter; bractlets oblong, much shorter than the ovate 
or ovate-lanceolate acute sepals, which are 4-5 mm. long; petals obcordate, 5-6 mm. long; 
stamens about 20; pistils many; styles filiform. 
TYPE LOCALITY: Rocky Mountains towards the sources of the Platte. [Probably Wyoming.] 
DISTRIBUTION : Rocky Mountains from Colorado to Idaho. 
ILLUSTRATION : Mem. Dep. Bot. Columbia Univ. 2: p/. 40, f. 5-9. 
129. Potentilla Macounii Rydb. Mem. Dep. Bot. Columbia 
Univ. 2: 101. 1898. 
Cespitose perennial; stems usually more than one from the candex, ascending, 
silky-villous, less than 1 dm. high, 1- or 2-leaved ; stipules ovate, 5-10 mm. lon g; basal leaves. 
many, pinnate with 3-5 pairs of rather approximate leaflets, silky on both sides and some- 
what tomentose beneath ; leaflets cuneate, about 1 cm. long, deeply cleft into oblong seg- 
ments; stem-leaves much reduced; cyme few-flowered ; hypanthium silky-villous, in fruit 
7-8 mm. in diameter; bractlets lanceolate, often nearly as long as the ovate sepals, which. 
are 4-5 mm. long ; petals obcordate, 5-7 mm. long; stamens about 20; style filiform. 
TYPE LOCALITY: Crow’s Nest Pass, Alberta. F 
DISTRIBUTION : Rocky slopes, Alberta and Montana. 
ILLUSTRATION: Mem. Dep. Bot. Columbia Univ. 2: p/. 47, F-1,2. 
