468 G. v. Martens — List of Alga. [No. 4, 



GlGARTINA, Lx. 



1 . G. spinosa, Grev. {Euchema spinosum, Ag. ; Fucus lichenoides, 

 Willd., non L.). — Andanians, Termoklee Island. (K. 1696). — 

 Edible. 



Chondrococctts, Kg. 



1. Ch. spinulosis, Kg. — South. Andaman, Eoss Island, in sea. 

 (K. 1594). 



CySTOCLONEvE. 



Hypnea, Lx. 



1. H. spinella, J. Ag. — Pegu, Diamond Island (K. 1619); Arra- 

 can, frequent on marine sandstone banks. — (K. 1948 — 49). 



2. H. musciformis, Lx. — Pegu, Diamond Island. (K. 1640). 



3. H. divaricata, Grev. — Pegu, Diamond Island. (K. 1673). 

 Gelidie^e. 



Acrocarptts, Kg. 



1. A. intricatus, Kg. — South Andaman, Camping Bay and Ter- 

 moklee Island, on the roots and stems of mangrove trees, as far 

 as they are submerged during high water. (K. 1608). 



2. A.pusillus,Kg. — Arracan, Boronga Island, on marine sand- 

 stone banks. Octob. (K. 1951). 



Sph^erococce^e. 



Sph^erococctts, L. 



1. Sph. multipartitus, e. lichenoides, Ag. — {Fucus ccruginosus, 

 Turner, vol. Ill, t. 147, f. ). — South Andaman, frequently ejected 

 by the sea all along the coast. 



2. Sph. lichenoides, L. — South Andaman, frequently ejected 

 by the sea; Termoklee Island, (K. 1652). — Edible. 



3. Sph. Lemania, Kg. — Arracan, on marine sandstone banks, 

 frequent. Octob. (K. 1942). 



4. Sph. confervoides, Ag. — Arracan, common on the rocky 

 shores of Boronga Island. Octob. (K. 1943). 



5. Sph. dumosus, Kg. — Arracan, marine sandstone banks of 

 Boronga Island. Octob. (K. 1947). 



Tylocarpe^j. 



Gymnogrongus, Mart. 

 1. G. pygmams, Grev. — Arracan, on marine sandstone banks 

 of Boronga Island. Octob. (K. 1950). 



