Plate 21 



Figs. 1, 2. Cladophora glomerata (L.) Kuetzing: 1, x 37i^; 2, x 

 225 ( redrawn from Smith ) 



Fig. 3. Cladophora glomerata fa. Kuetzingiantim ( Grunow ) 



Heering, x 150 



Figs. 4, 5. Cladophora insignis (C. A. Ag.) Kuetzing, x 225 



Figs. 6-8. Cladophora oligoclona Kuetzing: 6, x 100; 7, habit of 

 branching; 8, portion of main filament, x 100 



[702] 



