Bd. IV: 1 1 ) tue lichens. 73 



Explanation of the figures on the Plates. 



In all cases the figures are photographs taken with a Zeiss Microphotographic camera 

 and a microplanar lens (focal length ioo mm). The magnifications vary according to the 

 object and they are only roughly given for each case. 

 Plate i. Fig. 



Plate 2. 



Plate 3. 



10 - / 12S65. Schwedische Südpolar- Expedition rgoi— rgoj. 



