* K0N6L. SV. VET. AKADEMIENS HANDLINGAR. BAND. 20. N:0 5. 165 



germination in January, and during all the winter specimens with young prolifications 

 were common. Individuals bearing nemathecia were collected in November, December, 

 January and March. The plant occurring here with such organs even at other season, 

 I think it may be assumed to develop reproductive organs throughout the year. In the 

 eastern Murman Sea, the Kara Sea, and the Siberian Sea I have seen individuals with 

 nemathecia in the months of July, August, and September. 



Geogr. Distrib. One of the commonest and most widely spread algas of the Arctic 

 Sea. It is circumpolar, with the exception of not being found within the Atlantic 

 province. It has been met with in the greatest number at Spitzbergen and in the 

 eastern part of the Kara Sea. The most northerly place where it is known with cer- 

 tainty to occur is Treurenberg Bay, Lat. N. 79° 56'. It may possibly go still farther 

 northwards on the w^est coast of Greenland, as it has been reported from Smith Sound 

 between Lat. N. 78 and 82. 



Localities: The Greenland Sea: the coasts of Spitzbergen, common, sometimes 

 plentiful . 



The Murman Sea: the coast of Russian Lapland; Kolgujew Isle; the west coast 

 of Novaya Zemlya and iVaygats, common, but not plentiful. 



The White Sea: common and abundant according to Gobi. 



The Kara Sea: the east coast of Novaya Zemlya, Lat. N. 76° 8', Long. 0. 90° 25', 

 Lat. N. 76° 16', Long. 0. 92° 20', Cape Palander, Actinia Bay, in the last two places 

 common and abundant. 



The Siberian Sea: to the west of Blishni Isle, Lat. N. 73° 40', Long. 0. 140° 6', 

 loose on the bottom; Irkaypi, common, but not abundant. 



The American Arctic Sea: remarked at several places. 



Baffin Bay: north of the 78:th latitude in Smith Sound. 



Phyllophora membranifolia (Good, et Woodw.) J. G. Ag. 

 Alg. Med. p. 93. Pucus membranifolius Good, et Woodw. Linn. Trans. 3, p. 120. 



Descr. Phyllophora membranifolia J. G, Ag. Epior. p. 218. 



Fig. » » Harv, Phyc. Brit. tab. 163. 



Exsicc. " » Aeesch. Alg. Scand. exsicc. N:o 206. 



Syn. Phyllophora membranifolia Kleen, Nordl. Alg. p. 17. 



Habitat. Literal or sublitoral in the interior of deep bays in the Polar Sea, 

 fastened to stones, muscles, or shells. , It has been met with here only as sterile. It 

 probably here, as farther to the south, bears reproductive organs in winter. 



Geogr. Distrib. Known only from the southern part of the Atlantic region of the 

 Polar Sea. 



Localities: The Norwegian Polar Sea: Nordlanden in Skjsersta Bay. 



