120 SYNOPSIS OF THE FLORA OF COLORADU. 
caudex clothed with the Sai ec of leaves, subilexuous, leafy; a 
alternate, ade tpg snes late, 2/4’ 
long, Bub e, hirsut i pedtiaclon terminal, in threes; flowers 3 yel- 
lowish ; invoniere acorn campanulate, 5-cleft : perigonia glabrous, 
segments equal; achenia with 3 prominent wings, 4 4 long; seed ovate, 
triangular.— North Park, Hayden. Pl ains around Colorado sath ngs, Por- 
ter. Hall & Harbour, 500. Marcles Shy 
ERIOGONUM JAMESII, Benth. T. € G. Rev v. of Bri igonee, Proc. Amer: 
Acad., vol. 8, p. 155. Stem s 5/-12’ high, cxspitose, from a branched, 
d, w teil 
lanceolate ; talline: leaves in verticils of 3-5, spatulate or oblong, sub- 
sessile, white-tomentose beneath; cyme dichotomous, leafy; involucres 
in the forks or sessile on the branches, many-flowered, loosely silky-vil- 
lous externally, segments obovate or spatulate, perigonia somewhat 
petal-like, white or whitish, the 3 interior segments often becoming 
longer. eres nga Porter. Oaiion City, Brandegee. : 
RIOGONUM vum, Nutt. 7. & G., l. ¢., p. 156. Perennial, can 
cent with a silky -Woo ily or hoary pubescence ; stems seapitor 3-6 
high, from a thick, many ota audex; leaves spatulate or oblong- 
spatulate, becoming more or less glabrate above, radical ak crowded 
m the caudex; involucral ones about equaling the 2-5 rays, an 
omewha 
évury nett “at apex. —Hall & pe sieht 505; Parry; Canby. 
Around Denver ee ‘Golortde “Springs, Porter. Plains of the Platte, 
Coulter. Cation City, Brande 
ERIOGONUM apg rama ne ake T. & G., l.c., p.159. Rather slen- 
der, 14°-2° high, woolly, to mentose or Selied sterile branches de- — 
cumbent, suerespitoe, fasciculate, leafy at top; flowering branches or 
seape-li ike uncles sometimes — most usually with a whorl of 
leaves in the middle, with a simple compound umbel for the most 
part involucrate-bracted; leaves s sn lite -oblong or oblanceolate, whi 
woolly beneath or on both sides ; involuere 6-8 lett, the lobes spread- 
ing and soon reflexed, with numerous flowers; segments of the p 
yellow, very glabrous calyx scarcely longer than the very slender stipe; 
filaments villous below ; ovary more or Jess finely hirsute toward the 
top, especially upon aes = —Pleasant Park, Coulter 
ERI0GONUM UMBELLATUM, Torr. T. & G., l. ¢., p. 16 50. A span to 
foot’ high, woolly, iesnetitinag or webby, or sometimes glabrate; eo 
bent or hep g, often stolon-like, loosely ciespitose, 
fascionlaee. leafy at top; leaves obovate-spatulate or oval, narrowing to 
a petiole, wits: weeelly hedenth s ghar: seape-like, leafless excepting 
the involucre of bract-like leaves subtending the simple or rarely sub- 
compound eee involucre eoly 6-8 cleft, many: -flowered ; calyx very 
glabrous, yellow or sometimes white, the segments 2-3 times longer than 
the slender nee a filaments sant ovary as in the last.—Hall & Harbour, 
504; Parry. Near Denver, Dr. Smith. Cation City, Brandegee. Plains 
and foot-hills near Colorado Springs, Porter. Sierra Madre Range and 
plains of the Platte, Coulter. 
Var. MONOCEPHALUM, T. & G. Dwarf, ee apm pe aaron leaves. 
glabrate above or on both side es, the blade 4/-}/ long; scape 3/3’ high, — 
eee bearing 2-4 capitate involueres with us cate 1-3 bracts, or 3 
single | arger one, usually naked; flowers smaller. Sen Lakes, Coulter. — 
« Erioconcm (LACHNOGYNA) ACAULE, Nutt.. T. & G., l. ¢., p. 163. 
. Perennial, matted-eespitose, white-tomentose ; leaves sessile, det 
