MARINE ALGAL VEGETATION 7 11 



Rhodochorton membranaceum Magnus, K. Rosenv., 61, p. 794; P. 

 Kuckuck, Beitrage zur Kenntniss der Meeresalgen, 1897. 

 E. Icel., N. Icel., NW. Icel., SW. Icel. 



Fam. Dumontiaceae. 



Dumontia filiformis (Fl. Dan.) Grev., Stromf., 70, p. 30. 

 E. Icel., SW. Icel. (rather common), S. Icel. 



Dilsea edulis Stackh., Sarcophyllis edulis Kjellm., 36, p. 152. 

 SW. Icel. 



Fam. Squamariaceae. 



Petrocelis Hennedyi (Harv.) Batters, A list of the Marine Algae 

 of Berwick-on-Tweed. 



N. Icel.: Hraunakrokur (O, Davidsson), NW. Icel, SW. Icel, S. Icel. 



Cruoria arctica Schmitz, K. Rosenv., 61, p. 784. 

 SW. Icel. 



Cruoria pellita (Lyngb.) Fries, Kjellm, 36, p. 142. 

 SW. Icel, S. Icel.: Eyrarbakki. 



Peyssonellia Rosenvingii Schmitz, K. Rosenv., 61, p. 782; Haema- 

 tostagon balanicola Stromf., 70, p. 25? 

 E. Icel, N. Icel, NW. Icel, SW. Icel. 



Rhododermis parasitica Batters, A list of the Marine Algae of 

 Ber\vick-on-Tweed. 



NW.Icel, SW. Icel, S. Icel. 



Fam. Corallinaceae. 



Lithothamnion glaciale Kjellm., Stromf., 70, p. 18. 

 E. Icel, N. Icel, SW. Icel. 



Lithothamnion Ungeri Kjellm., 36, p. 91 excl. syn.; L. intermedium 

 Stromf., 70, p. 19. 



E. Icel, N. Icel, NW. Icel. 



Lithothamnion tophiforme linger, Foslie, The Norwegian forms 

 of Lithothamnion, 1895, p. 119; L. soriferum Stromf., 70, p. 18. 

 E. Icel, N. Icel, S\V. Icel.: HvalfjorcUir (Horring), S. Icel. 



Lithothamnion flavescens Kjellm., 36, p. 98. 

 E. Icel. 



Lithothamnion foecundum Kjellm., 36, p. 99. 

 E. Icel, N. Icel. 



