STUDIES IN THE COMPOSIT X. 259 
slightly corky, not tuberculate, the lesser ones represented 
by a slight and even not hairy suberous line; awns of half 
the length of the achene, notably unequal. 
Species inhabiting Oregon and Washington, and repre- 
sented in the U. S. Herb. by Cusick's n. 1,408, Elmers n. 
1,247, Suksdorf's 932 and 1,592, and by n. 592 of Kirk 
Whited. "Thus it will be seen to form also a part of B. cer- 
nua elliptica, Wiegand; perhaps also his B. dentata. 
" B. Cvsrckrr. Seeming perennial from rather slender hor- 
izontal rootstocks, yet perhaps only annual: stems 2 feet 
high, glabrous or setulose-scabrous: thinnish lanceolate 
leaves widely spreading, slightly connate, coarsely and 
rather remotely serrate: heads solitary and long-peduncled 
one terminal and one in the axil of each leaf, the lower 
peduncles amply leafy-bracted in the middle, the others 
naked; only the fruiting head nodding, all erect at flower- 
ing time: outer involucre ample, spreading, its bracts far 
surpassing the rays, finely spinulose-serrulate: broad yellow 
rays 6 or 8, about ł inch long, obtuse and with only an ob- 
scure suggestion of tridentation: disk-corollas with cylin- 
drie tube twice as long as the campanulate limb: achenes 
elongated and mostly linear-cuneiform, with narrow shortly 
aculeolate corky margins, and strongly striate between 
them; pappus of mostly 4 rather short and slender awns of 
a yellow color like the margins of the achene. 
A fine species, known to me only from the eastern bor- 
ders of Oregon, * Tules of the Grand Rond Valley," Cusick, 
n. 1,768. I can not say whether or not this was meant to 
be included by Mr. Wiegand in his B. cernua, var. elliptica ; 
but that is unimportant, the species being very distinct from 
any and all eastern allies. 
vB. Macouwir. Stout, rigidly erect; about 2 feet high, 
