148 PITTONIA. 
GEUM SCOPULORUM. Near G. strictum, but usually smaller, 
always less robust, the tuft of radieal leaves presenting two 
distinct forms, the lowest bipinnate, of rhombic-oval general 
outline, the rather crowded divisions and subdivisions cu- 
neiform and incisely|toothed, those next succeeding lyrate, 
with few and broad rounded and merely toothed or cleft- 
segments; base of stem and petioles hirsute; stipules 
smaller, more rounded than in G. strictum : style-tips more 
hairy. 
Type-specimens from “damp, shady thickets” at Piedra, 
southern Colorado, 14 July, 1899, C. F. Baker. Others, ob- 
tained by myself at Sherman, Wyoming, in 1893, want the 
lyrate form of basal leaf. 
ANDROSACE CAPILLARIS. Perennial, the crown of the 
root branching, forming a dense tuft, bearing numerous fili- 
form scapes all leafy at base, the whole plant 2 to 4 inches 
high, glabrous except a few scabrous points on the capillary 
pedicels under the calyx: leaves ovate or ovate-lanceolate, 
dentate, finch long including the broad petiole: flowers 
very many, white, minute; calyx campanulate, the triangu- 
lar teeth 3-nerved, shorter than the oval or subglobose cap- 
sule. 
This species, well marked in its vegetative characters, 
though in flower and fruit so much like A. filiformis of the 
Old World as to have passed under that name with all 
American authors until now, inhabits the margins of al- 
pine and subalpine streamlets in northern Colorado, north- 
ward through Wyoming to Montana. True A. filiformis is 
a tall and slender annual, and is not found in America. 
ANDROSACE ARGUTA. Perennial, the short crown of the 
root branched, but the foliage forming one very dense tuft 
from the midst of which rise the 12 to 18 scapes: leaves 
linear-lanceolate, 1 to 14 inches long, coarsely and some- 
what pinnately dentate, roughened above with an indument 
