PLATE XVI. 



FIGS. PAGE 



1-4. Cloftterium calonporum Wittr. x 400 (after 



Wittrock). 3 and 4, zygospores . . 138 



5-6. Cl. calosponim forma major West & Gr. S. West. 



Two zygospores, x 220 . . .139 



7_8. Cl. rtioracense Turn. x 400 ; 7, after Turner . 140 

 9_14 __C7. Leibleinii Kutz. 9-1 1, x 200 (after Halfs) ; 



12-14, x 520 . . . . 141 



15-16. CL moniliferum Ehrenb. x 400 . . 142 



