WOOTON AND STANDLEY 
Pubescence loose and coarse, yellowish or at least 
not white; plants not whitish; leaves pinna- 
tifid or merely toothed or lobed. 
Leaves pinnatifid, the terminal portion con- 
spicuously lobed; pedicels long, slen- 
Leaves subhastate, the terminal lobe not lobed; 
pedicels various. 
Pedicels very short and stout; pubescence 
coarse, tawny; leaves more or less 
Pedicels long and slender; pubescence fine 
and close, grayish; leaves often lan- 
ceolate and not at all lobed.......- 8. 
Fruit little or not at all depressed, the carpels with 2 or 3 ovules 
and 1 or 2 seeds, usually oblong, after separation from the 
axis cohering with each other by their sides and held by 
-a short thread. 
Carpels smooth at the base or nearly s0.-.-..----.-------- 9. 
Carpels strongly reticulated at the base. 
Leaves narrowly oblong, or lanceolate and subhastate; 
plants tall and stout. 
Leaves narrowly oblong, not lobed............--- 10. 
Leaves lanceolate, subhastate, with 2 low rounded 
lobes at the base, broader.............-.-..- 11. 
Leaves round-ovate or rhombic-ovate in outline, often 
pinnatifid or variously lobed; plants mostly 
lower and more slender. 
Pubescence fine and very dense, almost velvety 
(yellowish); lobes of the leaves usually 
round-ovate; flowers usually very numerous 
and dense......-.-.---.---0eee eee e ee eees 12. 
Pubescence coarse and loose; lobes of the leaves 
usually narrower, moatly acutish; flowers 
few or numerous, 
Leaves divided into 3 almost equal rounded- 
oblong entire lobes, the lateral lobes di- 
vergent.-......2..2220- 22 eee eee eee eee 13. 
Leaves not equally 3-parted, the lobes toothed 
and the lateral ones not divergent. 
Pubescence yellowish, the whole plant 
green, not grayish... ee .-14. 
Pubescence white, giving “the plants a 
grayish appearance. 
Leaves broadly cordate-ovate, mostly 
simple; petioles usually longer 
than the blades; pedicela short 
and comparatively stout....... 15. 
Leaves deeply 3-lobed; petioles 
shorter than the blades; pedi- 
FLORA OF NEW MEXICO. 421 
. S. pumila. 
. S. subhastata. 
S. arenaria. 
S. leiocarpa. 
S. cuspidata. 
S. lobata. 
S. incana, 
S. tripartita. 
S. fendleri. 
S. ribifolia. 
cels very long and slender..... 16. S. laxa. 
