122 UNIVERSITY OF MISSOURI STUDIES [27O 



428. V. eriophora Rydb. [Clematis eriophora Rydh.]. Wool- 

 ly LEATHER FLOWER. 



Foothills along Boulder Caiion, 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 loioo ft. (Ramaley & Robbins). 

 Montana to British Columbia ; Colorado to Utah. 



171. MYOSTJRUS 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. BATRACHITJM S. F. Gray. White water crow- 

 foot. 



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

 flaccidnm (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, lOioo ft. (Rama- 

 ley & Robbins). 



Labrador to Washington ; North Carolina to Lower 

 California. 



173. RANITNCULUS L. Crowfoot. Buttercup. 



432. R. reptans L. \R. Flauimula reptans (L.) E. Meyer]. 

 Creeping crowfoot. 



Common in limose places about Boulder ; at Marshall ; in 

 Sunset Cafion ; aspen and subalpine bogs at Glacier Lake and 



