August 5, 1909 |0 3 



a common clover in Montana and Wyoming. Therefore T. 

 brachypus Blankinship is a synonym of T. Rydbergii, which be- 

 longs to the longipcs group. 



TRIFOLIUM HAYDENI Porter, U. S. Geol. Snrv. Montana, 480. 

 1872. 



This plant is well described in the above report. All the 

 specimens seem to come from Montana or from the adjoining 

 region in Wyoming, and are all from high elevations, ranging 

 from 8000 to 1 1000 feet. It can be distinguished from the others 

 in the group by its calyx, which is glabrous. The teeth of the 

 calyx are very short and about as long as the tube. 



It is the only one of the group with a glabrous calyx, and 

 in this respect resembles T. Kingii and T. production. The 

 habit of the plant, however, enables us to place it in the lalifol- 

 iitm group. 



Specimens examined — 



Montana 



Rock detritns, Lone Monntain, Blankinship 125; Mt. 

 Bridger, Gallatin valley, Jones S77°>' Mt - Bridger, Bozeman, 

 Blankinship 1 ; Cook county, Kelsey 7585; Spanish Peaks, Mad- 

 ison Range, Flodman 624; Electric Peak, Yellowstone National 

 Park, Mearns 77. 



Trifolium multipedunculatum Kennedy 



This species was described and illustrated in the April num- 

 ber of Muhlenbergia. Two other collections by Cusick appear 

 to be the same, but with longer calyx teeth. They are: Wal- 

 lowa mountains near Aneroid Lake, 7000 feet, August 5, 1899, 

 no. 2301, and in the Wallowa mountains in dry granitic soil, 

 8000 feet, August 15, 1908, no. 3320c. 



We are aware that considerable variation occurs in this 

 group, and that when opportunity for close field study presents 

 itself, we may find the species as now considered so intergrading 

 with one another that a revision of opinion mav be necessary. 



