Plate 104 



ApJianothece saxicola Naegeli, x 900 



ApJwnothece nidiilans P. Richter: 2, x 750; 3 (drawn 

 from a specimen in the Field Museum of Natural 

 History), X 1500 



Pelogloea bacilUfera Lauterborn, x 750 



Aphanothece clathrata G. S. West: 6, x 900; 7, x 1500 



ApJianotJiece gelatinosa (Henn.) Lemmermann, x 750 



Aphanothece microscopica Naegeli: 9, x 750; 10, cells 

 in detail, x 1500 



[868 



