CHLOROPHYCE.X 129 
wall is formed, as a rule, at the curve and not at the 
base. In V. synandra several occur together on what 
has been called an “androphore,” while in V. de 
Baryana and V. piloboloides the antherozoids escape 
by lateral openings in the antheridium. There is, 
Fic. 34.—Vaueheria synandra. a, filament with oogonia and antheridia ; 
b, oogonium with antheridia; c, later stage of same; d, escape of zoospore. 
Highly magnified. (After Woronin.) 
in fact, considerable variety, of use in classification, 
in the forms of the antheridia. The contents have 
very little colouring matter, and break up into a 
large number of small, biciliated antherozoids with 
the cilia pointing in opposite directions, which escape 
K 
