PLATE XVII. 


159 160 
5O MICRONS 
THEF ANY 

Fig. 159. Oedogonium martinicense Hirn. (Redrawn from Hirn)............. 79 
Fig. 160. Oc. suboctangulare West and West. (Redrawn from West)......... 79 
Figs. 161 and 162. Oe. biforme Nordst. (Redrawn from Hirn)............... 83 
Pic. 163... Oevkurzit Zellers) (Redrawm fromy Ein)” one ose eee eee eee 79 
206 

