Bd. IV: 12) THE VEGETATION IN SOUTH GEORGIA. 23 



Rosita Harbour (Bay of Isles): 



Bryum lamprocarpum Pottia austrogeorgica var. 

 Dicranoweisia grimmiacea microphylla n. v. 



■» subinclinata 



Grimmia hyalinoatspidata var. 



miitica n. var. Chiloscyphus köppensis 



Hypiium uncinatum f. Lophocolea otipliylla 

 Orthotrichum crassifoliuin » secundifolia. 



The special cliff moss is evidently Orthotrichum crassifoliuin, recorded from all 

 localities except one, but never found in another situation. 



The stones are more or less covered with lichens, of which the following are 

 important: 



Acarospora molybdina Physcia caesia 



Buellia sp. Placodium lucens 



Lecidea auriculata ■» millegranutn 



Leptogium tremelloides > miniatum 



Mastodia tessellata » murornm. 



Verrucaria sp. 



Of these, the Placodia are of a certain importance for the landscape because 

 of their intense yellow or red colour. 



3. The inland tundra. 



According to different exposure and different mechanical composition of the 

 substrata there are all transitions between a tundra rich in grasses and the moss- 

 and lichen carpet, where phanerogams are of small or almost no importance. The 

 former type was once called by me meadow (2 b), a name perhaps not suitable in 

 this case. 



Jason Harbour. The lowest, rather steep part of a slope at the west side of 

 the cove shows the following vegetation: 



soc. Acaena adscendens sometimes forming pure mats. 



cop. Galium antarcticum, with the former. 



sol. Aira antarctica Phleum alpinum 



Festuca erecta Ranunculus biternatus 



Juncus scheuchzerioides Rostkovia magellanica. 



