324 



Hahitat. According to a label, it grows »in fossis submaririis». 

 Locality: Bafin Bay: Tessariniut on the west coast of Greenland according to 

 specimens in the herbarium of the Copenliagen Museum. 



Gen. Spirulina Turp. 

 Sec. Thur. Nostoch. p. 7. 



Spirulina Tenuissima Kutz. 



Phyo. gener. p. 183. 

 Descr. Spirulina tenuissima Paul. New. Engl. Alg. p. 31. 

 Fig. » » Hauv. Phyc. Brit. t. 105, C. 



Hahitat. The specimens that I have had the opportunity to examine, have grown 

 in company with the preceding alga in cavities with brackish water among raouldering 

 algse. 



Locality: Baffin Bay: Tessarmiut on the Avest coast of Greenland, according to 

 specimens taken by Wormskiold. 



Uncertain Species. 

 Haiosaccion dumontioides Dickie, Alg. Curaberl. p. 239. 

 Ceramium tenuissiraum J. G. Ag. Spetsb. Alg. Bidr. p. 11. 

 Ectocarpus Durkeei (?) Dickie. Alg. Sutherl. I, p. 142. 

 Cladopbora Inglefieldii » » » 1, p. 143. 



Conferva aerea » » » 2, p. 192. 



Gleocapsa speo. Cienk. Bericlit. p. 22, 



