134 Muhlenbergia, Volume 3 
Chloropyron canescens (Gray) 
Cordylanthus canescens Gray, Proc. Am. Acad. 7%: 383. 
1868. 
Adenostegia canescens Greene, Pittonia 2: 181. 1891. 
A species of the Great Basin, ranging from eastern Califor- 
nia to Salt Lake, Utah, in saline soil. 
Chloropyron Parryi (Wats.) 
Cordylanthus Parryt Wats. Am. Nat. 9: 346. 1875. 
Adenostegia Parryz Greene, Pittonia 2: 181. 1891. 
This is also a Great Basin plant, known only from south- 
western Utah. 
Chloropyron molle (Gray) 
Cordylanthus mollis Gray, Proc. Am. Acad. 4%: 384. 1868. 
Adenostegia mollis Greene, Pittonia 2; 181. 1891. 
A local species, known only from the marshes at the mouth 
of the Sacramento about Vallejo, Benicia and Suisun. It differs 
from the other species in having two instead of four stamens, 
but the habit and general appearance of the plant is the same. 
A significant fact is that all the Chloropyron species are 
found in salt marshes near the coast or/in saline soil in the in- 
terior. All of the Adenxostegia species inhabit the hill country, 
commonly in gravelly soil. 
A NEw NAME 
Carduus longissimus 
Carduus Americanus Rydb. Bull. Torr. Club, 28: 508. 
1901; not Carduus Americanus Greene, Proc. Phila. 
Acad. 1892: 362. 1893. 
Although discarding names raised to specific rank by other 
writers in cases where they conflict with later imposed specific 
names, Dr. Rydberg, in the Flora of Colorado, neglected to dis- 
posess his own names. I therefore assign the above name to 
this plant, referring to the long stout spines which terminate 
the involucral bracts. 
A. A. HELLER. 
