PLATE VI. 



Figures magnified 2o0 diameters. 



F'\C,F. 



Fip. 1. < LOSTEBIUM OBTU8UM, . . . . .38 



" 2. CliOSTEBIUM .n \i IDl M. ..... 38 



" .">. two cells with developed zygospore, : > s 



Figs. J. ">. < I."- 1 1 i : 1 1 m .i: \. hi , . . . . . 39 

 Fig. 6. Clostebu h mactuentum, ..... 38 



'' 7. CliOSTEBIUM k.cEBOSUM, zygospore and empty cells, . . II 



- < '1..-1 l 1:11 M -l UIOLA i i m. . . . . .42 



figS. 9, 10. ClOSTEBTUW DECTJ88ATUM, . . . . . 39 



Fig. 11. Clostebium icebosum, vegetative cell, . . . II 



Fig. 12. Clostebium NA8UTUM, . . . . 11 



Figs. 13, 14. Clostebiuw strioosum, . . . . . .42 



Fig. 15. < 'l."-l I Ml M ii RGIDUM, .... 42 



16. I L08TERH M LTNEATUM, tWO Cells, . . . .43 



FigS. 17. 18. < i."-i i.imi M CUCUMIS, . . . . . 1" 



Fig. 19. < l '-I I'lMl \1 C08TATCM, . . . . 12 



" 20. < lostebium ctbiolatum, (Compare fig. 8), . . 12 



Figs. 20 23. Clostebu m iugustati m, and variety decussatum, . . 4U 



