VoL. 1v.] Contributions to Western Botany. 49 
species in the collections examined. I have one specimen of C, 
g/aucus, Watson with an involucre of five, purple hyaline margined, 
lanceolate bracts as long as those on the involucels. 
ZAUSCHNERIA. 
Zauschneria Californica Presl. (Z. latifolia Greene, Pittonia 
i, 26.) I am not ina position to discuss the western forms of this 
species or the species of Zauschneria in general if there be more 
than one-species, but I can throw some light on the eastern 
forms as I know them well. ‘The form which Mr. Greene calls 
Z. latifolia as described by him does not exist in this region so 
far as I have even seen, though he gives it a wide range from 
California to Wyoming and south to Mexico. 
The common form in this region has the characters of two or 
three of his species, Z. Jatifolia, villosa, and tomentosa, in 
varying degree. A form gathered at Bingham, Utah, July 20, 
1880, and distributed somewhat, but not in my sets, has the 
petals a line longer than the calyx lobes; stamens exserted two 
lines longer than petals, and style four lines longer; calyx gradually 
enlarging from a point about two lines above the base; the 
base of the calyx is bulbose-enlarged; calyx one and one-fourth 
inches long; capsule tomentose, stipitate; plant two feet high, 
erect or bent at base; leaves sparingly villous and with the 
usual woolly pubescence reduced to a minimum, either of very 
short, flattened, and burnt hairs or only a papilla where the hair 
ought to be, but some of the leaves always minutely woolly. It 
_ is evident that the woolliness will vary with the climatic condi- 
_ tions under which the plant grows, and is of no specific value. 
This grows among the cliffs in rocks having a shallow soil, or in 
crevices. 
Another form collected by me at Atla, Utah, in 1879, and 
distributed by me as No. 1141, grew at an elevation of 8500 feet 
above the sea on the south slope of the cafion on an almost bare 
ledge, and, often found by me since in similar situations in the same 
cafion, is six inches high from spreading decumbent woody 
stems; leaves short-tomentose and long-villous, lanceolate to ovate, 
pinnate veined, sparely and shortly toothed; calyx enlarging 
from very near the base or from a point twolines above it in other 
