EXPLANATIONS AND REFERENCES, 

 PLATE LXXXV. 



Figures magnified 250 diameters. 



PAGE. 

 Figs. 1, 2. OEDOGONIUM ACROSPORUM, Var. Floridense, . . 83 



Fig. 3-5. OEDOGONIUM PUNCTATO-STRIATUM, .... 91 



" 6-9. OEDOGONIUM ECHINOSPERMOM, Var. spermagonio-multicellulari, 86 

 " 10-12. OEDOGONIUM CATARACTUM, ..... 77 



Figs. 13, 14. OEDOGONIUM ECHINATUM, . . .86 



