Muhlenbergia, Volume 5 



ship, however, is undoubtedly with Carex aurca, as stated by 

 Mr. Parish in his articles on southern Californian Cyperaceae. 

 Furthermore, it will be very hard, if not impossible, to distin- 

 guish this Californian species from the plant of Canada a id the 

 northeastern states which has been referred by several authors 

 to Carex bicolor All., an European species, the occurrence of 

 which in America is extremely doubtful. 



CAREX JonESH Bailey, Mem. Torr. Club 1: 16. 1889. 



No. 9003, collected June 27th, in Little Yosemite Valley, 

 elevation 6100 feet. The type of this species came fr >m S<>d:i 

 Springs, Nevada county, California. It is now known fr >m a 

 considerable number of additional stations, and ranges as far 

 east as Colorado and Wyoming, but it never seems to be a com- 

 mon species. 



CvREX MIRABIUS Dewey, Am. Journ. Sci. SO: 63. 1836 

 No. 8965, collected June 25, in Yosemite Valley near Gla- 

 cier point, elevation 4000 feet. This is a common species in the 

 northeastern part of the United States, but its occurrence iu Cal- 

 ifornia largely extends the range usually given to it. 

 P2ast Orange, N. J. 



STUDIES IN TRI FOLIUM III. 

 By P. Beveridge Kennedy 



We have been working for the last four or live years en- 

 deavoring to find out the truth in regard to a large section of 

 Pacific coast and Rocky mountain clivers. There are several 

 distinct groups in the section, but the species within the groups 

 are exceedingly variable, and hence it is difficult to differentiate 

 botanical characters that will hold for specific rank. Of the 

 group that we shall term the longipes group there are some eigh- 

 teen published names. A smallei group and one closely related 

 to the above is the latifolium group with seven published names. 

 A third we shall term the eriocephalum group, in which both 

 the calyx and the foliage are more or less hirsute. This also 



