146 RANUNCULACEAE. 



20. Ranunculus Bongardii Greene. (R. ti'iicllus Lyallii A. Gray) Along 

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

 Park. 



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

 to lo.ooo ft. — Gore Pass; Leroux Creek; Hotchkiss, Delta Co.; Mancos; Bob 

 Creek. 



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

 Colo. — -Mt. up to 9000 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., Iowa 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. (/^. »n(//;'^dw.y Coult., 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. hypcrboreus 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. 



1. 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 Caiion. 



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. 2. C. ranuncuUna. 



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



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

 Mountain ; Golden City. 



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

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

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

 Dixon Canon; Green Mountain Falls; Ohio Creek. 



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

 Canon. 



