44 Muhlenbergia, Volume 8 



Type locality. "S. E. California or adjacent Arizona." This 

 was collected by Palmer {364) in 1876 on the Mojave river, ac- 

 cording to the type specimen in the Gray Herbarium, 



Distribution: Upper end of the San Joaquin valley and in 

 the western part of the Mojave desert. 



specimens examined: Mojave river, Palmer 364. (type); dry 

 sands, Mojave desert, /^;-z';^^/^, May 17, 1882; Lancaster, Dudley 

 & Lamb 4302; Palmdale, Elmer 3648; Burcham's ranch, Mo- 

 jave river. Parish 490^; near Mojave station, Hall 7382; sandy 

 places in Walker's Pass, Purpus 3347. 



In the preparation of this paper I am greatly indebted to 

 Dr. J. N. Rose for the loan of all the southern California speci- 

 mens in the National Herbarium; to Dr. H. M. Hall for those 

 in the herbarium of the University of California; to Mr. S. B. 

 Parish and Dr. A. Davidson, for material in their private her- 

 baria, and to Dr. M. L. Fernald and Dr. P. A. Rydberg for notes 

 on type specimens in the Gray Herbarium and the Torrey Her- 

 barium respectively. 



Stanford University, California. 



NEW PLANTS FROM COLORADO 

 By George E. Osterhout 



^ Cogswellia conciiiiia sp. nov. 



Perennial from a long fleshy root: a cluster of leaves and 

 usually several peduncles borne at the summit of a short stem, 

 this having some leaves at its base: leaves sheathing at base, 

 I dm. or more long, about half the length being the petiole, 

 pinnate with three or four pairs of oblong leaflets more or less 

 divided, or some of the lower leaves bipinnate: peduncles much 

 exceeding the leaves, the longer ones 2 dm. long, dividing into 

 a 5 to lo-rayed umbel, the rays 2 to 4 cm. long: involucre a 

 rather indistinct scarious sheath, sometimes bearing linear 

 bracts: involucel a single foliaceous bractlet divided into several 

 (jblong parts: flowers numerous, yellow: carpels oval, 7 to §mm. 



