62 OTTO VERNON DARBISHIRE, (Schwed. Südpolar-Exj 



As far as it is possible to say at present therefore 106 lichens are known from 

 the land which lies strictly within the Antarctic region. 



An analysis of the true antarctic lichens is of no little interest. For this pur- 

 pose it is not necessary to separate the Lichens of the Antarctic of the western from 

 that of the eastern hemisphere. From the latter 25 lichens are known but of these 

 only 8 are not also recorded from the Western Antarctis. I have not the slightest 

 doubt that we will shortly see a great increase in the number of eastern lichens. 

 The few samples of well developed plants brought back from Mount Erebus clearly 

 show that there must be many smaller ones which have so far only escaped the 

 notice of the collector. Lichens are such small plants that it requires at least a bo- 

 tanist to find them. Most zoologists or even »naturalists» overlook these minute 

 cryptogams which must be looked for on the bare rock face with a lens. 



This is an analysis of the 106 true antarctic lichens: 



Antarctic specie? occurring in: Fruticul. Foliac. Crust. Total. 



Subantarctic America & New Zealand 4 2 6 12 



Suliantarctic America only I I 7 9 



New Zealand only — — 2 2 



Endemic in Antarctic 8 10 49 67 



Subantarctic America & South Georgia I 2 3 



New Zealand & South Georgia — 2 I 3 



South Georgia only — I I 2 



Subant. America, New Zealand & South Georgia 5 z ' 8 



Totals 19 18 69 106 



Species found in subantarctic America and on the Antarctic Continent amount 

 to 32. Those found in New Zealand amount to 25. The South Georgian species 

 are 16 only. Even these small figures show us shat the affinity to both subantarctic 

 America and New Zealand is quite considerable. 



Of antarctic species there are found in 



Fruticul. Foliac. Crust. Total. 



Subantarctic America II 5 '" 3 2 



New Zealand 9 6 10 25 



South Georgia 6 5 5 16 



Other countries I 1 3 2I 



Antarctic only (endemic) 8 10 49 ^7 



Total 19 18 69 106 



That is to say II or 58 \ of the fruticulose Lichens are also found in America. 

 Again 5 or about 31 % of the foliaceous ones are also american and 16 or about 

 23 "„ of the crustaceous lichens. 



