Collection of Arctic Plants. 389 



2. R. auricomus, supra in PL of Greenland. 



Trollius europaus. 



Confined, as it appears, entirely to Europe ; from the ex- 

 treme north to the south : not found however in Iceland. 



3. Caltha palustris, var. radicans. Hooker Fl. Scot. P. I. p. 176. 

 C. radicans. Engl. Bot. t. 2175. 



Assuredly but a variety of C. palustris, becoming dwarf and 

 creeping, with some alterations in the form of the leaves in 

 cold and alpine situations. It inhabits the whole of Europe, 

 from Greece to the North Cape ; Iceland. America, from 

 Pennsylvania to about 60" north. Caltha arctica of Brown is 

 a plant very nearly allied to this, and is found in Melville 

 Island. 



CAUYOPHYLLEM. 



4. Silene acaulis, supra in PI. of Greenland. 



CRASSULACEM. 



5. Rhodiola rosea. 



Frequent in Europe, inhabiting the alps solely in the 

 southern part, as the Pyrenees, the mountains of Dauphiny 

 and Switzerland, &c. In Britain it grows on the mountains ; 

 and in the northern extremity, as Orkney and Shetland, abun- 

 dantly on the rocks of the sea-coast. It is found in similar 

 situations in the arctic parts of the continent of Europe and in 

 Iceland. Not a native, I believe, of the continent of Ame- 

 rica: but it has been brought by Captain Scoresby from 

 Greenland. 



3 E 2 CRUCI- 



