58 CONSTITUENTS OF THE LICHEN THALLUS 



Fig. 30. Example of Cladophora. Cl. glomerata Ktitz. 

 A, nat. size; B, x 85 (after West). 



Fig. 29. A, Trentepohlia umbrina Born. 

 B, 7'. aurea Mart, x 300 (after Kiitz.). 



