146 RANUNCULACEAE. 



20. Ranunculus Bongardii Greene. {R. tenellus Lyallii A. Gray) Along 

 streams from Mont, to Alaska, Colo, and Ore. — Near Wyoming line, North 

 Park. 



21. Ranunculus Earlei Greene, Along mountain streams in Colo. — Alt. up 

 to 10,000 ft. — Gore Pass ; Leroux Creek ; Hotchkiss, Delta Co. ; Mancos ; Bob 

 Creek. 



22. Ranunculus acriformis A. Gray. Along streams in Wyo. and northern 

 Colo. — Alt. up to gooo ft. — ^Laramie River. 



23. Ranunculus pennsylvanicus L. f. On river banks from N. S. to Ida., 

 Ga. and Colo. — Alamosa. 



24. Ranunculus Macounii Britton. Along streams and in wet places from 

 Ont. to Alb., Iov?a and Colo. — Alt. 4000-8000 ft. — Ft. Collins; Bear River; 

 Steamboat Springs; Durango ; bank of Michigan, Walden; New Windsor; 

 Gunnison; Mancos; Middle Park; La Veta; Kremmling; Cucharas Valley, 

 near La Veta; Routt Co. 



25. Ranunculus Purshii Richardson, (i?. OT«W)5dMjCoult., in part) In water 

 and on muddy flats from N. S. to Alaska, Ont., Colo, and Ore. — Alt. 4000- 

 10,000 ft. — Laramie River; above Beaver Creek; Ft. Collins; bank of Michi- 

 gan, at Walden ; Front Range, Larimer Co. ; Wahatoya Creek ; Parlin, Gun- 

 nison Co. ; stream 12 miles below Grand Lake ; Gunnison. 



26. Ranunculus intertextus Greene. {R. hyperboreus natans Coult. ; not 

 Regel; R. natans A. Gray; not Meyer) In water in Wyo. and Colo. — Alt. 

 8000-10,000 ft. — ^Vicinity of Como ; Graymont ; Georgetown ; Breckenridge ; 

 Cassell's; South Park; Empire City. 



15. HALERPESTES Greene. 



I. Halerpestes Cymbalaria (Pursh) Greene. (Ranunculus Cymbalaria 

 Pursh; Oxygraphis Cymbalaria Prantl) In wet and especially alkaline soil 

 from Lab. to Alaska, N. J. and Calif. — Alt. 4000-10,000 ft. — Ft. Collins; 

 , Pueblo ; Gypsum ; Trail Creek ; Graymont ; Colorado Springs ; Montrose ; 

 Grizzly Creek; Durango; Arboles; Sangre de Cristo Creek; Walsenburg; 

 Parlin; Ouray; Palsgrove Canon. 



16. CYRTORRHYNCHA Nutt. 



Sepals broadly rounded-ovate, not clawed ; petals usually wanting. 



I. C. neglecta. 

 Sepals spatulate or obovate, clawed ; petals usually present. 



Leaf segments thick, mostly acute ; panicle corymbiform. ij. C. ranunculina. 



Leaf segments thin, broad; inflorescence not corymbiform. 3. C. rupestris. 



1. Cyrtorrhyncha neglecta Greene. In the mountains of Colo.— Horsetooth 

 Mountain; Golden City. 



i. Cyrtorrhyncha ranunculina Nutt. In the mountains of Wyo. and Colo. 

 —Alt. 6000-8000 ft.— Hills west of Soldier Canon; Rist Caiion; foot-hills, Ft. 

 Collins; Howe's Gulch, Larimer Co.; Spring Canon; Horsetooth Mountain; 

 Dixon Canon; Green Mountain Falls; Ohio Creek. 



3. Cyrtorrhyncha rupestris Greene. In the mountains of Colorado.— Black 

 Canon. 



