364 Marine Algae of Berwick -on-T weed. 



From the foregoing List it will be seen that the Marine Flora 

 of Berwick, so far as it is at present known, contains 119 genera 

 and 271 species. Of these the following 78 species have been 

 added to the British List since the publication of Phycologia 

 Britannica (1846-51.) 



Gloeocapsa crepidinum. 

 Dermocarpa prasina. 



,, Schousboei. 



,, violacea. 



,, rosea. 



Polycystis pallida. 

 Spirulina pseudo-tenuissima. 

 Oscillaria littoralis, Cm. 

 ,, lsetevirens. 

 ,, percursa b. marina. 

 , , colubrina. 

 ,, antliaria. 

 ,, natans. 

 ,, infectoria. 

 Microcoleus nigrescens. 

 Symploca fasciculata. 

 Lyngbya luteo-fusca. 

 ,, stragulum. 

 Isactis plana. 

 Calothrix Crustacea. 

 ,, seruginea. 

 Microcheete grisea. 

 Mastigocoleus testarum. 

 Prasiola stipitata. 

 Enteromorpha minima. 



,, canaliculata. 



Epicladia Flustrse. 

 Gomontia polyrhiza. 

 Ulothrix discifera. 

 ,, implexa. 

 Ehizoclonium Kochianum. 



,, rigidum. 



Cladophora arctiuscula. 



,, hirta. 



Codiolum gregarium. 

 Vaucheria Thuretii. 



,, sphserospora. 



