PLATE 38 

 Compsonema speciosum f. piliferum S. and G. 



Fig. 1. A fragment of a plant showing well developed rhizoids from the 

 creeping filament, various shapes and positions of the gametangia and terminal 

 hairs. X 125. 



Fig. 2. A fragment showing a well developed zoosporangium with included 

 zoospores. X 125. 



Compsonema coniferum S. and G. 



Fig. 3. Fragments of a frond, showing the characteristic shapes, sizes, and 

 positions of the gametangia, and the character of the erect filaments. X 125. 



Compsonema fructuosum S. and G. 



Fig. 4. A fragment of a frond showing the character of the erect filaments 

 and a well developed zoosporangium. X 125. 



Fig. 5. A group of characteristic gametangia. X 125. 



Compsonema dubium S. and G. 

 Fig. 6. Fragments of typical plants bearing gametangia. X 250. 



Compsonema fasciculaium S. and G. 



Figs. 7-9. Fragments of plants showing the positions, shapes, and sizes of 

 the gametangia, the branching erect filaments and the tortuous character of the 

 creeping filaments. X 250. 



[374] 



