PLATE 32 



Myrioncma phyllophilum S. and G. 



Fig. 1. A single creeping filament near the margin of a frond showing 

 zoosporangia(?) and 3'oung erect filaments. X 2.j0. 



Fig. '2. The same as figure 1, but illustrating the gametangia. X 250. 



Fig. 3. A fragment from the center of a mature plant showing a true hair, 

 mature erect filaments with terminal hairs, and gametangia. X 125. 



Fig. 4. The same as figure 3, but illustrating sessile zoosporangia( ?). X 125. 



Fig. 5. A segment of the basal portion showing the coni])aet nature of the 

 radiating filaments. X 125. 



Myrionema obscurum S. and G. 

 Fig. 6. A few fragments of typical plants. X 125. 



Myrionema foecundiim f. majus S. and G. 



Fig. 7. A terminal part of a creeping filament showing a group of so-called 

 ascocysts, true hairs, and typical gametangia. X 250. 



Myrionema setiferum S. and G. 

 Fig. 8. A fragment of a tyi)ieal jilant. X 125. 



Myrionema primarium f. acuminatum S. and G. 

 Fig. 9. Fragments taken from different parts of a plant. X 250. 



[348] 



