122 UNIVERSITY OF MISSOURI STUDIES [270 



428. V. eriophora Rydb. [Clematis eriophora Rydb.]. WOOL- 

 LY LEATHER FLOWER. 



Foothills along Boulder Canon, 6000-7000 ft. (Daniels, 998). 

 Puzzling intermediates between this species and the preceding 

 were found at Orodell. 



WYOMING to COLORADO and UTAH. 



170. ATRAGENE L. BELL RUE. 



429. A. occidentalis Hornem. [A. Columbiana Nutt.]. WEST- 

 ERN BELL RUE. 



Very scarce in Bear Canon, 6000-7000 ft. (Daniels, 761). 

 Redrock lake 10100 ft. (Ramaley & Robbins). 

 MONTANA to BRITISH COLUMBIA; COLORADO to UTAH. 



171. MYOSURUS L. MOUSE TAIL. 



430. M. apetalus Gay [M. aristatus Benth.]. BEAKED MOUSE 

 TAIL. 



In muddy places, Long's Peak, 9000 ft. (Rydberg). 

 MONTANA to WASHINGTON; COLORADO to CALIFORNIA: 

 CHILI: NEW ZEALAND. 



172. BATRACHIUM S. F. Gray. WHITE WATER CROW- 

 FOOT. 



431. B. aquatile flaccidum (Pers.) Cockerell. Nov. comb. [B. 

 flaccidum (Pers.) Rupr.]. FLACCID-LEAVED WHITE WA- 

 TER CROWFOOT. 



Aquatic in a pond at Glacier Lake, 9000 ft. (Daniels, 618). 

 Also at Boulder (Pydberg). Redrock lake, 10100 ft. (Rama- 

 ley & Robbins). 



LABRADOR to WASHINGTON; NORTH CAROLINA to LOWER 

 CALIFORNIA. 



173. RANUNCULUS L. CROWFOOT. BUTTERCUP. 



432. R. reptans L. [R. Flammula reptans (L.) E. Meyer]. 

 CREEPING CROWFOOT. 



Common in limose places about Boulder; at Marshall; in 

 Sunset Canon; aspen and subalpine bogs at Glacier Lake and 



