13 



Salpingia (Coppin). Erect, branching ; cell 

 elongated, its base furnished with spines and 

 trumpet-shaped processes ; aperture lateral. 



S. Hassallii. Fig. 14 ; mag. 



Hippothoa (Lamx.) . Creeping, adhering; branches 

 springing from the sides of the cells. 

 H. catenularia. 



divaricata. Fig. 15 ; n. s. and j 



16 



20 



jEtea (Lamx.). Base a creeping, adhering thread; 

 cells tubular, erect, scattered. 



M. anguina. Fig. 16 ; n. s. and mag. 

 truncata. 



