PLATE XII. 



Figures magnified 500 diameters. 



Fig. 1. TETMEMORDS GIGANTEUS, ... .99 



" 2. DOCIDIUM ARCHERII, .... 51 



" 3. DOCIDIUM NODULOSUM, .... .51 



" 4. DOCIDIUM WOODII, ...... 55 



" 5. DOCIDIUM BACULUM, Var. Floridense, . . . .53 



Figg. 6, 7. STATJRASTRUM VESICULATUM, .... 132 



" 8, 9. SPHAEROZOSMA PULCHELI.UM, Var. bambusioides, . . 29 



" 10-13. EUASTRUM PECTINATUM, front, lateral and transverse views, 109 



" 14-16. HYALOTHECA DI^SILIENS, Var. hians, . . 22 



