FIG. 23. 



Oi'dium lactis, after Hansen : 1, Hyphse with forked partitions ; 2, two 

 ends of hyphse one with forked partition, the other with commencement 

 of development of a spherical link ; 3 7, germinating conidia ; 6 6'", 

 germination of a conidium, sown in hopped beer-wort in Ranvier's 

 chamber, and represented at several stages ; at each end germ tubes 



[p. 104.] 



