306 
BOTANY. 
cle decompound, very open, 4-12' higli ; involucres usually glabrate ; leaves 
all radical. — Involucres and flowers rather large for the species. Southern 
California and Nevada. Pali-Ute and East Humboldt Mountains ; 5-6,000 
feet altitude ; July-September. (1,030.) Specimens from Truckee Desert 
are taller (18') and branched from the base, but with very small flowers, the 
involucre but J" long, and the yellow calyx even smaller, the mature ache- 
nium exceeding the flower, the long beak minutely scabrous as in the ordinary 
form. (1,031.) 
Eriogonum Heermanni, Dur. & Hilg. T. Sf G., I c, jj. 179. Annual, 
very glabrous or perhaps glabrate, dichotomously very much branched; invo- 
lucres few along the short divaricate branchlets, short-campanulate, 1" long 
and as wide, several-flowered, 2-3 times longer than the ovate-subulate 
bracts, teeth 4-5, broad, rounded ; bractlets chaffy, glandular-ciliate, the 
outer linear, the innermost filiform ; calyx glabrous, 2" long in fruit, outer 
segments rounded, much larger than the oblong-spatulate inner ones ; beak 
of the aclienium minutely scabrous. — California, (Heerman;) sterile plains ot 
Western Nevada, (Torrey ;) Southern Utah, (Palmer.) The latter specimens 
are fJ' liigh, the branchlets rather stout and rigid, woolly tomentose ; lobes 
of the involucre also pubescent; calyx white, very small. 
Eriogonum Plumatella, Dur. & Hilg. . T. S^- G., I c, p. 179. Annual, 
floccose-woolly, low, (3-8' ;) leaves radical, orbicular, long-petioled, white- 
woolly beneath; branches of the decompound panicle rather rigid, many- 
flowered, either straight or twisted, at length becoming entangled ; involucres 
very small, shorter than the flowers, campanulate, few-flowered, not exceed- 
ing the bracts, apprcssed, scattered on the naked branchlets ; bractlets fili- 
form, scarcely barbellate ; calyx white, rose-purple or yellowish, glabrous, 1" 
long, the similar segments (the inner ones slightly narrower, scarcely longer,) 
obovatc-cuneiform and broadly refuse, quasi-pandurate from the incurving of 
the margins at the middle ; achenium minutely scabrous above; embryo much 
incurved, the cotyledons accumbent.— Southern California, (Heermann ;) 
Western Nevada. Carson Desert, West Humboldt Mountains, and Monitor 
Valley ; 4-5,000 feet altitude ; June-September. (1,032.) 
Eriogonum deflexum, Torr. T. 4' G., I c, p. 181. ( § Pedunculata. 
See Appendix, under EriogonecB.) Annual, rather stout, 1-2° high ; leaves 
1-2' in diameter, radical, rounded, subcordate, floccose-woolly, long-petioled; 
branches of the glabrous eff'use many-flowered panicle rigid, rushlike, usually 
