368 COMPOSITAE 
crowded ; heads sige or up to 10, the disk 10-15 mm. wide; involucre 5-7 mm. high, 5 ages 
and usually also with a few short white hairs near the se; phyllaries evidently imbricate, olive 
greenish, the inner sometimes with — n midrib and stramineous meen Bh 30-55, pink or 
white, 6-13 mm. lon ng, 1.5-2.6 mm. wide: ee ty 3.5-5.0 mm. long; style- appendages 
obtuse, 0.05-0. 15 mm. lon ng; pappus 5 18-26 coarse — = white or amteis bristles and som 
conspicuous, shades, gpa scales; achenes 4- deme 
andy or rocky places in the foothills of the mountains, vp dice ideas ——- mountains of San Bernardino 
Coonty, California, and to be expected in adjacent Riverside County. Type ocality: border of PEE Desert at 
Cushenberry Spring, north side of San Bernardino Weuctcune : San TRE pa Couns May-Jun 
51. Erigeron utahénsis A. Gray. Utah Daisy. Fig. 5632. 
Erigeron SH SS var. oe * Gray, Proc. Amer. Acad. 8: 650. 1873. 
Erigeron utahensis A. Gray, op. cit. 16: 89. 1880. 
Erigeron prea seaits Hstion, Bull. tas Club 25: 628. 1898. 
Perennial with a stout woody taproot and branching caudex; stems several, 10-50 cm. high, 
more or less strigose and gray-green, generally more densely strigose and whi at the base. 
Leaves strigose and gray-green, the basal and lowermost cauline ones linear-oblanceolate, up to 
10 cm. long and 6 mm. wide, commonly withered or deciduous by flowering time; cauline leaves 
linear, up to about 7 cm. sige and ae a aed usually longer than bee internodes, often spreading ; 
heads 1-10, the disk 8- wide; involucre 4-6 mm. high, mo r less str Hae he gic 
below, and often finely glanetutitt, eipecialty shave : phyllaries phase Smnbé icate, the outer green- 
ish, the inner more stramineous and usually with brown midrib, the m margins and tips aeeedctatty 
purplish ; rays 10-40, blue, pink, or white “o- 18 mm. long, 1.4—2. '7 mm. wide ; disk-corollas 3.5-4.6 
mm. long ; style-appendages obtuse, 0.1- ‘0. 25 m rena ong ; by Sa double, the outer of inconspicuous, 
—— “- developed setae; achenes 4- i tar or ra rely 6-nerved, hai 
aces, especially on idk: mostly Upper echo a Provinetcr “ Moitaiesd’ San Bernardino 
ue en Sal to sehen Utah, southwestern Colorado, and norther rn Arizona. Type locality: Kanab, 
Kane County, Utah. May-Jun 
52. Erigeron argentatus A. Gray. Silvery Daisy. Fig. 5633. 
Erigeron argentatus A. Gray, Proc. Amer. Acad. 8: 649. 1873 
W yomingia argentata A. Nels. in Coult. & Nels. New Man. Bot. Rocky Mts. 531. 1909. 
nnial with a eProet and short branching caudex; stems s everal 6-40 cm. high, finely 
‘stats se aie more or less silvery or grayish. Leaves silvery-strigose, sometimes becoming greener 
at maturity, the basal nee tufted, oblanceolate or linear-oblanceolate, up to 7 cm. long and 6 mm. 
wide, = a ill-defined and mostly shorter than oo eet ky at: eco: Pecattercd: 
linear or linear-oblanceolate ; head solitary, the disk 10-18 mm. wide; involucre 5.5-9 mm. high; 
ohyllarie’ stromag? imbricate, the outer silvery-strigose, the inner P apaticly strigose and often finely 
glandular, thinner than the outer and usually with stramineous margins, all sharply acute or acu- 
i i er, pink, or perhaps white, 9-15 mm. long, 1.6-2. 
minate; rays 20- lue to aperines ie , Dink, p p 15 long, 1 
. ; disk-corollas 3 ong ; style-appendages obtuse, 0.1-0. . long ; pappus 
ouble, the inner of 25-40 fine white bristles, “the outer of well- developed but i SS ccaeianous s short 
bristles; achenes rather Gagthaire, © ith , or, most commonly, 8 prominent nerves, reputedly 
sometimes ge ed. 
Foothills or at moderate elevations in the mountains, mostly Arid Transition Zone; Inyo cers California, 
to Nevada and western Utah. Type locality: Pah- Ute + He a ay northern Nevada. Mostly June 
53. Erigeron aequifélius H. M. Hall. Hall’s Daisy. Fig. 5634. 
Erigeron aequifolins H. M. Hall, Univ. Calif. Pub. Bot. 6: 174. 1915. 
nnial with a deep-seated root-crown which gives rise to very slender, branched, rhizoma- 
hese bec t id 
tous oe: oming aerial stems on reaching the surface; aerial ste nder, e 
ascending, ie herbage sparsely or moderately spreading-hirsute with relatively long 
irs, also finely glandular. Leaves oblanceolate or narrowly elliptic-oblong, exceeding the inter- 
nodes, all about alike, without a ft and only gradually red a g, 
C) r 20 mm. lon 
1.5-3 mm. wide; heads 1-3, the disk 8-13 mm. wide; involucre 4-5 mm. high, finely glandular and 
sometimes also sparsely te: : ees yrorer imbricate, with brown pidvel, on outer 
and with n i 
otherwise gre — a r more char with narrow scarious margins; 
bine, about 6 mm. lon: ant .3 mm cc dai. corollas 3.6-4.3 mm. long; style- Sinton Sb 
se, 0.1 mm. Tong ; a oan Pisa inner of ee Seder white bristles, se outer of a few 
ried eed setae; achenes 2-nerved, spar hai 
Rocky places and pe ridges at 6, pi ,000 feet 2 ctta Cadidich Zone; Kern River region of the Sierra 
Nevada of somal Tulare County, California. Type locality: Trout Me adows, Sierra Nevada, Tulare County. 
July. 
54. Erigeron bréweri A. Gray. Brewer’s Daisy. Fig. 5635. 
Erigeron breweri A. Gray, Proc. Amer. Acad. 6: 541. 1865. 
Perennial with a taproot and generally subterranean root-crown, this giving rise to slender 
rhizomatous s branches sa a more than 1.5 mm. thick, which become aerial stems on reaching the 
ace ; aerial stems slender, trailing to more hea suberect, 1-3(5) + tall, branched at or near 
the ground level into nearly e a arts, sometimes also branched above but then with an evident 
