PLATE XX. 



Figures magnified 500 diameters. 



Page. 

 Figs. 1, 2. CtoSMABiuM BLBBTDM, front and end view, . . .93 



" 3, 5. CosMABiuM BoTETTis, Var. tumidum, Wolle, front and side 



views, . . . . .82 

 Fig. 4. " " zygospore, husks attached, . . 82 

 Figs. 6, 7. CosMARiUM Bkoomei, front and end views, . . .93 

 8, 9. " " smaller variety and zygospore, . 93 

 10-12. CoSMARroM EvEBEiTENSE ; front, end and lateral vjews, . 92 

 13-15. CosMARinM QUAStLLUS ; front, lateral and end views, . 92 

 16-18. CosMASiuM QnADRrpARiTTM ; front, lateral and end views, . 94 

 19, 20. CtosMARiUM HOMALODERMDM ; front and end views, . 88 

 21-33. CosMARiDM WoiiiiEANUM (C pseudogranotum), fit)nt, trans- 

 verse and lateml views, . 64 

 24-26. CosMARlTJM TDBPixn ; front, end and lateral views, . . 87 

 27, 28. CosMARiuM PROTRACTUM ; front and end views, . . 90 

 Fig. 29. CoSMARiUM ORNATCM, Var. minor, {Protractum f) . .90 



