;2o Southern Cross. 



LICHENES. 



By V. H. BLACKMAN, M.A., F.L.S. 



Lecanora melanophthalma, Earn. Geikie Land, Spring, 1900. 

 Lecidea geographica, L. Geikie Land, Spring, 1900. 

 Nmropogon Taylori, Nyl. Geikie Land, Spring, 1900. 

 Flacodium elegans, Achar. Geikie Land, Spring, 1900. 



ALG^. 

 By Miss E. S. BARTON. 



Halimeda Tuna, Lam. Cape Adare. 



Chaetomorpha Darwinii, Kiitz. Adventure Bay, Tasmania. 



Codium mucronatum, J. Ag. Adventure Bay, Tasmania. 



Sargassum vestitum, J. Ag. Adventure Bay, Tasmania. 



Cystophora spartioides, Ag. Adventure Bay, Tasmania. 



? Fuciis platycarpus, Thur. Adventure Bay, Tasmania. 



Desmarestia aculeata, Lam. ? Cape Adare. 



Desmarestia Eossii, Hook, et Harv. Cape Adare. 



Destiiarestia viridis, Lam. Franklin Island. 



Callophyllis, sp. No fruit. Auckland Island. 



Rhody7nenia, sp. No fruit. Auckland Island. 



Korea poly car pa, Harv. Adventure Bay. 



Plocainium coccineum, Lyngb. Cape Adare. 



? Gracilaria confervoides, J. Ag. No fruit. Auckland Island. 



Polysiphonia, sp. Adventure Bay. 



Dasya, sp. Adventure Bay. 



Lenormandia Mullcri, Sond. Auckland Island. 



Ballia callitricha, Ag. Cape Adare. 



PEEIDINIEiE. 



By V. H. BLACKMAN, M.A., F.L.S. 



Peridinium divergens, Ehrbg. Adventure Bay, Tasmania, 

 December, 1898. 



