Schrcederia setigera 



c d 



Dimorphococcus cordatus 



a 



Dimorphococcus lunatus 



d e 



Pilidiocystis endophytica 



a 



d 



9 



h 



I in n o 



Actinastrum Hantzschii 



VI. CHLOROPHYCE^ 



'1. Protococcales 



