94- DISTRIBUTION OF BRITISH PLANTS 



Cornus suecica, Rubus Chamaemorus, and Vaccinium 

 Oxycoccos, usually called herbs, but allied to shrubby 

 plants, may also be named. We here find two species, 

 the Potentilla and Andromeda, which do not ascend to 

 the subalpine region of Britain, although they do possibly 

 reach the median region with us, and ascend higher in 

 other countries. 



Greenland extends southwards to latitude 60°, north- 

 wards beyond 78°, and is thus nearly in the same latitude 

 as the coasts from Melville Island to Hudson's Bay above 

 mentioned, and not far distant in longitude. Neverthe- 

 less, like the N. W. corner of America, it shows a supe- 

 rior vegetation. In the list of Greenland plants, given by 

 Giesecke, in Brewster's Cyclopaedia, we find fifteen Bri- 

 tish shrubs and one tree. 



* Azalea procumbens. * Betula nana. 



* Vaccinium Vitis-Ideea. Salix Myrsinites. 



* uliginosum. glauca. 

 Calluna vulgaris. * herbacea. 

 Menziesia ccerulea. * reticulata. 



* Andromeda polifolia. lanata. 

 Pyrus Aucuparia in (60°). * Empetrum nigrum. 



Betula alba. Juniperus communis (to 65°). 



Iceland, in point of vegetation, equals or surpasses 

 Greenland, notwithstanding its less southern latitude 

 (63° — 66°). The mean temperature of Rekiavig, on the 

 south side of the island, appears to be 38° or 40° ; that 

 of summer attaining to 50°. The plants of Iceland, as 

 enumerated by Professor Hooker, in Sir George Mac- 

 kenzie's Travels, include the following shrubs : — 



* Azalea procumbens. * Arbutus Uva-Ursi. 



* Vaccinum uliginosum. * alpina. 



Myrtillus. ( Pyrus domestica. 



* Calluna vulgaris. * Aucuparia.) 



