KONCxL. SV. VET. AKADEMIENS HANDLINGAR. BAND. 20. N:() 5. 151 



Habitat. It. grows within the sublitoral zone on exposed coasts, scattered, as an 

 element of the formation of Laminariacece. I have found individuals with tetrasporangiu 

 in August on the north coast of Spitzbergen. 



Geogr. Distrib. It is known only from the arctic region, where it is bot little 

 spread. Its maximum of frequency is probably in Baffin Bay. Its northernmost locality 

 is Fairhaven on the north-west coast of Spitzbergen, Lat. N. 79° 49'. 



Localities: The Greenland Sea: the northwest coast ofSpitzbergen, scattered and scanty. 



Baffin Bay: on the west coast of Greenland. Here it appears to be pretty com- 

 mon. However, I know with certainty only one locality where it is found, namely 

 Godthaab. 



Fam. CHAMPIACEiE J. G. Ag. 



Epicv. p. -290. 



Gen. Ohylocladia (Grev.) J. G. Ag. 



1. c. p. 295; Grev. in Hook Brit. Fl. 2, p. 297. 



Chylocladia clavellosa (Turn.) Grev. 



1. c. Fucus clavellosus Turn. Linn. Träns. 6, p. 133. 

 Descr. Chylocladia clavello.sa J. G. Ag. Epicr. p. 297. 

 Fiij. Chrysymenia clavellosa Harv. Phyc. Brit. t. 114. 

 Exsicc. Chylocladia clavellosa Aresch. Alg. Scand. exsicc. N:o 72. 



Syn. Lomentaria clavellosa Kleen, Nordl. Alg. p. 16. 



Habitat. It groAvs according to Kleen in deep water on stony bottom, bearing 

 sporocarps and tetrasporangia in July and August at Nordlanden. 



Geogr. Distrib. It is knowii only from the southern part of the Atlantic region 

 of the Polar Sea. 



Localities: The Norivegian Polar Sea: Nordlanden, generally scarce. 



Chylocladia articulata (Huds.) Grev. 



in Hook. Brit. Fl. 298. Ulva articulata Huds. Fl. Angl. p. 5G9. 

 Descr. Chylocladia articulata J. G. Ag. Epicr. p. 301. 

 Fig. » B Harv. Phyc. Brit. t. 283. 



Exsicc. Lomentaria articulata Auesch. Alg. Scand. exsicc. N:o 7. 



Syn. Lomentaria articulata Kleen, Nordl. Alg. p. 16. 



Habitat. At that place where it has been found in the Polar Sea, it is litoral 

 growing beneath Fucus and Ozothallia, according to Kleen. Only small sterile 

 specimens iire known from the Polar Sea. 



Geogr. Distrib. It has hitherto been recorded only from one locality in the southern 

 part of the Norwegian Polar Sea. 



Locality: The Norwegian Polar Sea: Nordlanden at Fleinvasr Isles. 



