399 
POTENTILLA MINUTIFOLIA N. sp. 
Cespitose, stems about 1 dm. long, slender, 1—2-leaved, spar- 
ingly silky or nearly glabrous, slightly striate; stipules ovate- 
lanceolate, the lower scarious and brown ; basal leaves very small, 
on slender petioles 3-5 cm. long, silky-hirsute, slightly grayish 
beneath, pinnate, of two pairs of leaflets, the upper pair and the 
Sessile odd leaflet about y% cm. long; the lower pair only 2-3 
mm.; leaflets obovate, incised, with oval rounded segments; flowers 
1-2, about 15 mm. in diameter; calyx sparingly hirsute, in fruit 
7-8 mm. in diameter; bractlets oblong, generally obtuse, about 
half as long as the oblong-lanceolate obtuse or acutish sepals; 
petals obcordate, about ¥% longer than the sepals. (Plate 275, 
figs. 6-10.) 
This somewhat resembles P. subjuga, but differs in the small 
Size of the plant and of the leaves, the three terminal leaflets, and 
their short and rounded segments. 
Colorado: Wm. M. Canby (Pikes Peak) 1895. 
POTENTILLA SAXIMONTANA N. sp. 
Densely cespitose; stems several, 1—3-flowered, less than 5 
€m. long, silky pubescent. Basal leaves numerous, pinnate with 
2-3 often approximate pairs of leaflets, silky pubescent and some- 
What tomentose beneath, short-petioled; leaflets deeply dissected 
Into oblong obtuse or acute segments; flowers about I cm. in 
. 
diameter; calyx densely silky; bractlets oblong, obtuse, shorter 
than the broadly ovate-triangular sepals; petals broadly obcor- 
date, much longer than the sepals; stamens about 20; style 
nearly terminal, about equalling the smooth achene.* __ 
It somewhat resembles the preceding, but is still more cespi- 
tose, has much broader sepals and larger leaves, which have 
much shorter petioles. The leaves resemble somewhat those of 
L. pinnatisecta (Wats.) Aven Nelson (7. ovina Macoun), but are 
slightly tomentose. The flowers are much larger and the sepals 
Much broaderthan in that species. It resembles also somewhat 
P. Sommerfeltii, but has much more dissected leaves, and the style 
is different. The following specimens have been examined: 
Colorado: John Wolf, no. 366, 1873 (Wheeler’s expedition, 
type); Hooker & Gray, 177 (Torrey’s Peak); Knowlton, no. 19, 
1896 (Pike’s Peak). 
"8 The plate of this will appear in a subsequent number. 
