PLATE XII. 



Fipiirf^ magnified 50(1 diameUtr* 



Pact. 

 FIl"-- 13. Docidicm Trabeci la; two conjugated cells, pouring out the 



cytioplasni, or granular chlorophyllouf* 



contents and forming a zygospore, 18 



Fij_ r . \- a developed zygospore, . 18 



Figs. ">. i. " a cell dividing, . . ,48 



Fig. 7. " early stage of outgrowth, or new semicells, 18 



< m,i M.iM'in- coNNATtrs, very near Delps. C. ellipticum, . 55 



9. - " ..... 55 



]n. " Var. minor, .... 55 



11. < \ I". Yl IM'KI ~ PSBO NNMI-. .... 55 



12. < \ U> VI.IM'KI -MINIM-.. . . . -VI 



13. ' \ I hi vi.imhm 9 COSTATUS, . . . 56 



14. I AM" 1 I.IMilM - I l CUBB1 iv. . . . .54 



15. Calocylindrus ci'RTUS larger form, .... 54 



16. " smaller form, .... 54 



17. i \ i.im \ i.i s mm - Kaiimi C. cylindricum, . 54 



18. ' \ I < " 1 I 1 \ I'KI - |i| N.n-I'i IRA, . . 56 



19. < a i.oi Yi.iM'i.r- Thwattesh, ..... 56 



20. Docidium soDOSCM, Compare Plate XI, . . . 50 



