54 The Scottish Naturalist. 



Leaves cordate-reniform, crenate or more rarely crenate-toothed. 

 crenate or sub-entire in front. Sepals broadly oval. 

 Europe, Asia, N. America. 



Var. C. integerrima Pursh. 



Leaves all nearly quite entire ; stem-leaves obsoletely crenu- 

 late towards the base. Sepals obovate or oval. Stem many- 

 flowered. 



Lower Austria, Siberia, N. America. 



Var. C. parnassifolia Rafin. 



Leaves cordate-reniform, strongly toothed or crenate. Sepals 

 elliptical. Stem one or few-flowered, and few-leafed. 

 Siberia, N. America. 



{%%) Sepals smaller, and often narrower, at most not exceeding -| an 



inch in length. 



Var. C. minor Miller. 



Leaves cordate-reniform, crenate. Sepals oval. Stem erect, 

 many-flowered. 



Here and there amongst the typical form. 



Var. C. asarifolia DC. 



Leaves cordate-reniform, crenate. Sepals oval. Stem sub-erect, 

 one-flowered. 



Siberia, N. America. 



Var. C. membranacea Turcz. C. ranunculoides Schur. 



Leaves small (about I5-1J inches broad), cordate-reniform, ere 

 nate. Sepals elliptical, three times longer than broad. Scape 

 one or few-flowered, erect. 



Transsylvania, Siberia, Japan. 



Var. 0. radicans Forster. 



Leaves cordate-triangular, sub-truncate at the base, crenate- 

 toothed. Sepals elliptic-oblong. Stem creeping or ascending, 

 rooting at the joints, few-flowered. 



Scotland, E. Finmark, Silesia. 



In his Conspectus Flone Europaese, Nyman admits two species 



-C. palustris L. and C. radicans Forst. but thinks that the latter 



is probably a sub-species only, or a variety. Under C. palustris, 



he mentions several varieties, and alludes to six Austrian forms 



which he at one time distinguished as species (vide Beck's paper 



