PLATE XX. 



Figures magnified 500 diameters. 



PAGK. 

 Figs. 1, 2. COSMARIUM BIRETUM, front and end view, . . .93 



" 3, 5. COSMARZUM BOTRYTIS, Var. tumidum, Wolle, front and side 



views, ..... 82, 



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



Figs. 6, 7. COSMARIUM BROOMEI, front and end views, . . .93 



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



" 10-12. COSMARIUM EVERETTENSE ; front, end and lateral views, . 92 



"" 13-15. COSMARIUM QUASILLUS ; front, lateral and end views, . 92 

 " 16-18. COSMARIUM QUADRIFARIUM; front, lateral and end views, . 94 

 " 19, 20. COSMARIUM HOMAIXHX&RMUM ; front and end views, . 88 

 " 21-33. COSMARIUM WOLLEANUM (C. pseudogranatum), front, trans- 

 verse and lateral views, . 64 



" 24-26. COSMARIUM TURPINII ; front, end and lateral views, . , 87 



" 27, 28. COSMARIUM PROTRACTUM ; front and end views, . . 90 



Fig. 29. COSMARIUM ORNATUM, Var. minor, (Protractumf) . . 90 



