EXPLA2JATI0N OP PLATE V. 



Branching of mycelium from culture grown on papaya fruits. 110 X • 



Branching of mycelium from culture grown on boiled ants. 110 X. 



Same a little more enlarged. 270 X. 



Young sporangial hypha. 110 X. 



Buds on hypha. 500 x. 



Sporaugial stalk cut oS. by a septum in an old cuitxire, 500 X. 



Zoospore formation. 500 X. 



(a) Zoospore. 750 X. 



{b-h) Zoospores germinating — different stages. 500 x. 

 Figs. 9 to 11. Oospore formation from the papaya strain. 750 X. 

 Fig. 12. Two intercalar antheridia fertilizing different oogonia. 750 X . 

 „ 13. Antheridium and oogonium arising from the same branch, 750 x. 

 „ IL Kipe oospore. 750 x. 



