VOL. IV.] Contributions to Western Botany. 49 



species in the collections examined. I have one specimen of C. 

 glaticus, Watson with an involucre of five, purple hyaline margined, 

 lanceolate bracts as long as those on the involucels. 



ZAUSCHNERIA. 



Zmtschneria Calif ornica Presl. (Z. latifolia Greene, Pittonia 

 i, 26.) I am not in a 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. latifolia, villosa, and tonientosa, 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 oaiion on an almost bare 

 ledge, and, often found by me since in similar situations in the same 

 cailon, 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 two lines above it in other 



