@a: A, =Snglemannii (D.C. Haton) Gray. Erect herbs 60-80 cm. tall, 
c the stems thinly villous in the lower part, puberulent with short curled 
hairs and minutely glandular in the upper parts; basal leaves oblanceolate, 
soon withering, the stem leaves prevailingly elliptical, 4-8 em, long, 
1-2.5 cm, broad, acute at both ends, sessilegmostly entire, both surfaces 
thinly pubescent; heads few or numerous in rather round=-topped clusters, 
involucral bracts in several unequal series, 5-8 mm, long, lanceolate, 
very acute, whitish, the margins usually purple=tinged, glabrous on the 
back, the margins strongly ciliate with soft hairs; ray-corollas rose-= 
purple, 15-18 ma, long; achenes 5,5=4 mm, long, hirtellous, 
In burns or thin reproduction or in open places; seen only in the north, 
10 AH ——>Usper Priest R., 3000 ftes; South Baldy Mt., 5000 ft.; Priest R. 
Expe Sta,, 3000 ft.es Packsaddle Peak, 
A, laevis L. var. Geyeri Gray, Erect herbs with horizontal rootstocks, 
u Caw 40-90 cm, tall, glabrous and glaucous; basal leaves oblanceolate or 
spatulate, 8-15 cm. long, their blades 1.5-2.5 on, wide, soon withering, 
the stem leaves oblong or oblong-lanceolate, 3-15 cm, long, 5=25 mm, 
broad, mostly acute, or the lower frequently obtuse, all firm, rounded- 
cordate at the base, clasping the stem, glabrous and glaucous, the leaves 
of the ascending branchlets similar but markedly reduced, giving a 
characteristic aspect to the plant, 5-20 mn. long; heads rather numerous, 
clustered towards the tips of the ascending strict branches, involucral 
bracts 4,5=7 mn. long, narrowly oblong, acute and somewhat spinose at the 
tips, the lowermost ciliate on the margins towards the base; ray=corollas 
violet=-blue, 10-12 mm, lcng, 1.5 m, wides achenes glabrous, 2.5=3 mm, long. 
Common in meado s along streams at lower elevations in the north, 
