PLATE XCVI. 



PIGS. PAGE 



12. Cosmarium Bntrytis Menegh. x 500 . 1 



3-4. C. Botrytis var. paxillosporum W. & Gr. S. 



West. 3, x 400 j 4, zygospore, x 520 . 4 

 5-6. C. Botrytis. Two zygospores, x 520 . 2 



7-15. Germination of zygospore of C. Botrytis, x 190 



(after De Bary) 



