207 PRELIMINARY CATALOGUE OF PLANTS. 



Callithamnion, Lyngb. 

 C. tetragonum, Ag. 

 C. Baileyi, Harv. 

 C. Borreri, Ag. 

 C. polyspermum, Ag. 

 C. byssoideum, Arn. 

 C. Dietzite, Hooper. 

 C. corymbosum, Ag. 

 C. versicolor, Ag. 

 C. plumula, Lyngb. 

 C. Americanum, Harv. 

 C. cruciatum, Ag. 

 C. Turner!, Ag. 



MELANOSPORM. 



Sargassum, Ag. 



S. vulgare, Ag. 



Pucus, L. 



F. nodosus, L. "Rockweed." 

 F. vesiculosus, L. "Rockweed." 



Laminaria, Lain. 



L. saccarhina, Lam. " Kelp." 



Stilophora, Ag. 



S. rhizodes, Ag. 

 S. papillosa, Ag. 



Striaria, Grev. 



S. attenuata, Grev. 



Chorda, Lam. 



C. filum, Stack. 



Chordaria, Ag. 



C. flagelliformis, Ag. 

 C. divaricata, Ag. 



Castagnea, Thuret. 



C. virescens, Thuret. 

 C. Zosterse, Thuret. 



Leathesia, Gray. 



L. tuberformis, Gray. 



