KONGL. SV. VET. AKADEMIENS HANDLING AR. BAND. 20. N:0 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 tetrasporangia 

 in August on the north coast of Spitzbergen. 



Geogr. Distrib. It is known only from the arctic region, where it is but 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 coastof Spitzbergen, 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. CHAMPIACE^ J. G. Ag. 



Epicr. p. 290. 



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



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



Ohylocladia clavellosa (Turn.) Grev. 



1. c. Pucus clavellosus Turn. Linn. Trans. 6, p. 133. 

 Descr. Ohylocladia clavellosa J. G. Ag. Epicr. p. 297. 

 Fig. Chrysynnenia clavellosa Harv. Phyc. Brit. t. 114. 

 Emsicc. Ohylocladia clavellosa Aresch. Alg. Scand. exsicc. N:o 72. 



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



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

 sporocarps and tetrasporangia in July and August at Nordlanden. 



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

 of the Polar Sea. 



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



Ohylocladia articulata (Huds.) Grev. 



in Hook. Brit. Fl. 298. Ulva articulata Huds. PI. Angl. p. 569. 

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

 Fig. » » Harv. Phyc. Brit. t. 283. 



Exsicc. Lomentaria articulata Aresch. 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 are 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 Fleiiivasr Isles. 



