OBSERVATIONS ON THE COMPOSITZ. 95 
strongly twisted throughout, manifestly 3-nerved (some 
seeming 5-nerved), nearly glabrous except the short-hispid- 
ciliolate or somewhat serrulate-scabrous margins: heads 
very numerous, in a compact terminal cymose corymb, the 
branches of which are angular and scabro-pubescent: invo- 
lucre about 4 inch high, the lanceolate acute carinate-con- 
duplicate bracts rather distinctly 4-ranked: segments of the 
rather narrow corolla not widely spreading: style-tips 
rather short and linear-subulate: slender appressed-pubes- 
cent achenes nearly as long as the pappus. 
Shrub common in western Colorado; the type specimens 
collected by myself in the Gunnison Valley, in 1890. It 
appears to form a part of Gray’s Bigelovia Douglasii, var. 
tortifolia in the Synoptical Flora, but is no part of the 
original of that variety as published in the American 
Academy paper; that type being of the Sierra Nevada of 
California. 
7. ©. viscipiFLorus, Nutt. Trans. Am. Phil. Soc. vii. 324 
(1840). Crinitaria viscidiflora, Hook. Fl. ii. 24 (1834). 
Bigelovia? viscidiflora, DC. Prodr. vii. 279 (1838): B. 
Douglas, A. Gray, Proc. Am. Acad. viii. 645 (1873) in part. 
Shrub 2 to 4 feet high, the erect branches of the season a foot 
long or more, with straw-colored or almost whitish bark, and 
with an ample fastigiate terminal corymb of middle-sized 
heads: leaves 2 inches long, narrowly linear, very acute, rather 
firm, 3-nerved, their margins more or less distinctly ser- 
rulate-scabrous: heads about 3 or 4 lines high: involucral 
bracts linear oblong, abruptly acute, about 3 in each 
vertical rank. 
The type of this species is of the Columbia River Plains 
in the far North West. The varieties or subspecies are 
numerous, and each has its own territory. 
Var. lanceolatus. Chrysothamnus lanceolatus, Nutt. 1. ec. 
Linosyris lanceolata, Torr. & Gray, Fl. ii. 233. Bigelovia 
Douglasti, var. lanceolata, A. Gray. Shrub not half as 
large as the type; foliage thinner, this and the branches 
altogether scabro-puberulent. 
