OBSERVATIONS ON THE COMPOSIT2. 93 
phora the typical Chrysothamni have corollas less deeply 
cleft and segments less recurved; style-tips more slender and 
exserted; achenes larger, narrower and more pubescent, with 
few angles, and a much less firm as well as often more 
copious and elongated pappus. They are all shrubs with a 
very hard wood; and their branches are leafy throughout, 
the leaves being all alike, 7. e., the lower not differing from 
the upper. : 
The following enumeration embraces the more typical 
species, and also a few that arefanomalous. 
1. C. pumitus, Nutt. Trans. Am. Phil. Soc. vii. 323 (1840). 
Bigelovia Douglasti, var. pumila, A. Gray, Syn. Fl. 140 
(1884). Numerous erect branches 6 to 10 inches high, 
glabrous, very leafy, the bark whitish: leaves an inch long 
or more, glabrous, slightly glutinous, narrowly linear, very 
acute, 3-nerved, often involute or occasionally somewhat 
twisted; involucre 2 or 3 lines high, the bracts not very dis- 
tinctly 4-ranked, the outer short, ovate-lanceolate, the inner 
oblong-linear, not acute, faintly carinate. 
Nuttall’s type specimen in the Herbarium of the British 
Museum, is a mere branchlet with leaves, and a terminal 
cluster of altogether undeveloped heads. The foliage there- 
fore is all that is available for comparison; and the above 
description is drawn from specimens obtained by myself, in 
1889, in the same district in which Nuttall collected his type, 
and which answer perfectly to that type in all points which 
it offers for comparison. 
2. C. puberulus. Linosyris viscidiflora, var. puberula, 
D. ©. Eaton, Bot. King Exp. 158 (1871). Bigelovia 
Douglasii, var. puberula, A. Gray, Proc. Am. Acad. viii. 646 
(1873). Size and habit of the last, but all the parts from 
puberulent to almost or quite hispidulous. Plant often grow- 
ing with the preceding, but not intergrading with it; hence 
doubtless a good species; and very common on desert plains 
of Utah, Nevada and northern Idaho. 
