466 



Mr Philip Sewell on the Flora of [sess. lih. 



or over the tundra. Any report upon these must also be 

 held over. 



Mr George W. Traill has kindly named the few marine 

 Algse dredged in tow-nets suspended over the vessel's side, 

 or picked up from among a considerable amount of drift on 

 the beach. Probably there are very few Algae in the im- 

 mediate neighbourhood of the Straits. The water is shallow, 

 and on that account during winter unusually cold, the 

 Straits being frozen over for nearly half the year. 



The species enumerated are common to our own shores, 

 and also to the coasts of the United States, the excep- 

 tions being Polysiphonia arctica, Porphyra abyssicola, and 

 Claclostephus plumosus. This last is a true Arctic species, 

 found in Cumberland Sound and on the Labrador coasts. 

 It would seem to be carried by the cold currents setting 

 past Hudson's Bay as far south as to Prince Edward's Island, 

 then probably it is carried by the Gulf Stream current to the 

 British Islands, and eventually beyond the coast of Norway. 



It may be worth remark that, of the small number col- 

 lected, nearly one-half are different from those found at Vard0. 



The remarks made by Mr Traill, as to the general habit of 

 the species found near to the North Cape, refer also to 

 these. 



There were obtained — 



Ahnfeldtia plicata, Ag. 

 Cladostephus plumosus. Holmes. 

 Delesseria sinuosa, Lx. 

 Desmarcstia aculeata, Lx. 

 Ectocarpus littoralis, Lynyb. 

 Fucus sp. 



Laminaria flexicaulis, Le Jolis. 

 Polysiphonia nigrescens, G^'eiv. 



,, arctica, Ag. 



„ urceolata, Grev. 



Porphyra abyssicola, KJell. 

 Khodoniela lycopodioides, Ag. 



Also Bhizosolenia styliformis and Chmtoceros armatus, the 

 former of which is not in our seas, were obtained in the 

 tow-net when near to the ice off the south coast of Novaya 

 Zemlya. 



In conclusion, we may make certain more general com- 

 parisons between the vegetation of these places within the 

 Arctic circle and that of our own country. 



Bearing in mind that on no part of the earth, within the 



