17 4 GEOLOGY OF OHIO. 



Ranunculus recurvatus Poir. Hooked Crowfoot. 

 Common over the whole state. 



Ranunculus repens L. . . , 



Introduced from Europe, Painesville, W. C. Werner ; Lorain Co., A. A. Wright 



(Cat.) 



Ranunculus reptans L. [J?, flamufa refiians E. Meyer). Creeping Spearwort. 

 Cincinnati, Joseph Clark (H. C. Beardslee, Cat.) 



Ranunculus rhomboideus Goldie. 



Sandusky, Dr. Kellogg ( H. C. Beardslee C: t.) 



Ranunculus sceleratus L. Cursed Crowfoot. 

 Frequent in ditches. 



Ranunculus septentrionalis Poir. 

 Generally distributed over the state. 



Ranunculus trichophyllus Chaix. (R. aquatilis trichophyllus Gray). 

 Throughout the whole state. 



398. CALTHA L. Marsh Marigold. 



Caltha palustris L. 

 Over the whole state. 



399. HYDRASTIS Ellis. 



Hydrastis canadensis L. 



Occurs over the whole state. 



400. COPTIS Salisb. 



COPTIS TRIFOLIA (L.) Salisb. 



Portage Co., W. Krebs ; Painesville, Wm. C. Werner; Lorain Co., A. A. Wright 

 (Cat.) 



401. ISOPYRUM L. 



Isopvrum BITERNATUM (Raf.) Torr. & Gray. 



Frequent throughout the southern half of the state ; Lorain Co., A. A. Wright 

 (Cat.) 



402. NIGELLA. L. 



Nigella damascena L. Fennel-flower. 



Escaped, ironi cultivation, Southern Ohio, J. S. Hine. 



403. AQUIIvEGIA Tourn. Columbine. 



