272 KJELLMAN, THE ALG^ OF THE ARCTIC SEA. 



Habitat. This species lives at a deptli of several fathoms, attachecl to shells. 

 Geogr. Distrib. Found only within the Norwegian Polar Sea. 

 Loccdity: Nordlanden at Fleinvaar. 



Fam. SPHACELARIACE^ J. G. Ag. 



Alg. Med. p. 27. 



Gen. Cladostephus (Ag.) J. G. Ag. 



Spec. Alg. 1, p. 41; Ag. Syn. Alg. p. XXV; spec. e.x.cl. 



Cladostephus spongiosus (Lightf.) Ag. 



1. c. p. XXVI. Conferva spongiosa Lightf. Fl. Scot. p. 983. 

 Descr. Cladostephus spongiosus J. G. Ag. Spec. Alg. 1, p. 43. 

 Fig. » » Harv. Phyo. Brit. 138. 



Exsicc. " » Aeesch. Alg. Scand. exsicc. N:o 172. 



Syn. Cladostephus spongiosus Akescii. Phyc. Scand. p. 388. 

 » » Kleen, Nordl. Alg. p. 35. 



Habitat. This alga occurs in the litoi-al zone in rock-pools. It prefers exposed 

 localities and is somewhat gi-egai'ious, attached to stones. I do not know at what s.eason 

 it develops reproductive organs in the Arctic Sea. There are certainly to be found in 

 the herbarium of the Copenhague Museum specimens from Greenland with gametangia 

 (zoosporangia multilocularia), but the time when they were collected is not noted. Only 

 sterile individuals are known from the Norwegian Polar Sea, where this species has been 

 collected in summer. 



Geogr. Distrib. The southern part of the Norwegian Polar Sea and Baffin Bay. 

 Its proper range is certainly beyond the limits of the Arctic Sea. The most northern 

 point Avhere it has been taken is Westfjord in Nordlanden. 



Localities: The N orwegian Polar Sea: Nordlanden scarce on the shores of Westfjord. 



Baffin Bay: the coast of Greenland; the special locality is not noted. 



Gen. Stupocaulon KtTZ. 



Phyc. gener. p. 293. 



Stupocaulon scoparium (L.) Kutz. 



1. c. Conferva scoparia L. Spec. Pl. Ed. 2, p. 1635. 

 Descr. Stupocaulon scoparium KiJTZ. Spec. Alg. p. 466. 

 Fig. » » Tab. Phyc. 5, t. 96. 



Syn. Stupocaulon scoparium Zeller, Zweite d. Polarf. p. 84. 



Locality: This species is said by Zellek 1. c. to have been brought home from 

 Greenland by the second German Polar expedition, probably from Sabine Island on 

 the east coast. I have not seen any specimens. 



