EXPLANATIONS AND REFERENCES, 

 PLATE CXIV. 



Figures magnified 125 diameters. 



PAGE. 



Fig. 1-5. PITHOPHORA AEQUALIS, Var. Floridense. Sections of fila- 

 ments with sporangia, . 131 



Figs. 6, 7. PITHOPHORA KEWENSIS sterile filaments from Florida, . 131 



" 8, 9. " " section of fertile filament from Wit- 



trock's monograph, . . . 131 



