CATALOGUE. 
301 
Perennial, niatted-csespitose, white-tomentose ; leaves sessile, densely crowded 
upon tlie closely branched caudex, oblong or sublinear, margins revoliite; 
head of 1-5 nearly sessile short 3-5 -toothed involucres, sessile among the 
uppermost leaves, sometimes shortly exsert-pedunculate in fruit ; flower wdth 
a broad sessile base, the calyx hardly 2" long, tomentose, 6-parted, with 
equal oblong segments ; filaments pilose only at base ; ovary very tomentose 
with long tangled wool. — Leaves 2-3" long, spreading from the imbricated 
sheathing base. Discovered by Nuttall in the Rocky Mountains of Colorado. 
Sandy foot-hills near head of Holmes Creek, Northeastern Nevada; 6,000 
feet altitude ; September. (1,015.) 
Eriogonum (Heterosepala) ovalifolium, Nutt. T.SfG., l.c.^j). 164. 
Perennial, caespitose, acaulescent, hoary-woolly; leaves oval or somewhat 
rounded, petioled, crowded upon the numerous short branches of the caudex; 
scape 3-9' high, simple, leafless, with a single head (very rarely 2) of few 
(3-8) closely sessile 5-8-toothed involucres ; bracts very small or wanting ; 
calyx with the base not produced, very glabrous, 6-parted, more or less yellow 
or rose-colored, w^holly petaloid, becoming thin and scarious after flowering ; 
segments very unequal, the outer very broadly oval, cordate at base with 
usually a rather deep sinus, the lobes reaching to the joint or beyond it, the 
inner narrow, spatulate, emarginate, connivent-erect and involute, each bear- 
ing 3 stamens at the claw-like base ; ovary glabrous ; embryo incurved, the 
ascending radicle much exceeding the orbicular accumbent cotyledons. — 
From Colorado to the borders of California ; Southern Utah, (Palmer.) The 
present specimens have the flowers dull-white, usually veined with purple 
and somewhat tinged with yellow. Frequent on the foot-hills from the 
Washoe Mountains, Nevada, to the Wahsatch ; 5-6,000 feet altitude ; May, 
June. (1,016.) Also collected in a reduced form on the East Humboldt 
Mountains, Nevada, at a height of 10,000 feet; July, August. (1,017.) 
Var. Leaves oblong, long-petioled ; flowers bright-yellow. — East foot- 
hills of the Pah-Ute Range, Nevada ; June. (1,018.) 
Var. TENUius, Benth. A slender form with smaller flowers. Dry foot- 
hills, head of Holmes Creek, Nevada; September. (1,019.) 
Eriogonum (Capitata) Kingii, T. & Gr.; /. c, p. 165. Perennial, low, 
cffispitose-acaulcscent, white-woolly ; leaves crowded upon the many-branched 
caudex, spatulate, obovate, sometimes rounded, (blade 3-5" long,) long- or 
short-petioled ; scape slender, with a single usually naked globose head ; 
