276 KJELLMAN, THE ALG^ OF THE ARCTIC SEA. 



mer, I have not seen any but sterile specimens. It probably bears reproductive or- 

 gans in winter here as farther to the south, for inst. on the coast of Sweden. 



Geogr. Distrib. It belongs only to the most southern part of the Polar Sea. At 

 certain places on the coast of Finraarken it is still plentiful. The northernmost point 

 where it has been found is Talvik in Finraarken about Lat. N. 70°. 



Localities: The Norwegian Polar Sea: Nordlanden at Bodo and on both sides of 

 Westfjord, rather common ; Finmarken at Talvik abundant. 



Baffin Bay: the coast of Greenland according to J. G. Ag. Spec. Alg. p. 31, and 

 specimens in the herbarium of the Copenhague Museum with no special locality noted. 



Fam. ECTOCARPACE.E (Ag.) Thur. 



in Le Jol. Liste Alg. Cherb. p. 14 et 21; Ag. Syst. Alg. p. XXX; lim. mut. 



Gen. Isthmoplea Kjellm. 



Algenv. Murm. Meer. p. 30. 



Isthmoplea sphserophora (Harv.) Kjellm. 



1. c. Ectocarpus sphserophorus Haev. Engl. Fl. 5, p. 326. 

 Descr. Capsicarpella sphserophora Kjbllm. Skand. Ect. och Tilopt. p. 20. 

 Fig. » » » » » » t. 1. fig. 2. 



Exsicc. » » Aresch. Alg. Scand. exsicc. N:o 414. 



Syn. Capsicarpella sphserophora Kleen, Nordl. Alg. p. 36. 



Isthmoplea sphserophora Gobi, Algenfl. Weiss. Meer. p. 58. 



Habitat. Litoral, attached to other algsB, as Rhodomela lycopodioides, Polysiphonia 

 fastigiata, Gigartina mamillosa, Ptilota phtmosa, and Pt. elegans. In the Polar Sea 

 it does not occur anywhere in greater masses. Apparently it prefers exposed loca- 

 lities, neither Kleen nor myself having met with it in the interior of deep bays. It 

 bears reproductive organs in July and August on the coast of Norway. 



Geogr. Distrib. Found in the Norwegian Polar Sea and the White Sea. It is not 

 properly an arctic alga, decreasing both in frequency and luxuriancy towards the North. 

 Its most northern point is Gjesvser in Finraarken about Lat. N. 71°. 



Localities: The Norwegian Polar Sea: Nordlanden coranion and abundant; TrorasO 

 amt at the town of Tromso; Finmarken local and rather scarce at MaasO and Gjesvser. 



The White Sea: cp. Gobi 1. c. p. 12. 



Gen. Ectocarpus (Lyngb.) Kjellm. 



Skand. Ect. och Tilopt. p. 34; Lyxgb. Hydr. Dan. p. 130; char. mut. 



Ectocarpus confervoides (Roth) Le Jol. 



Liste Alg. Cherb. p. 75. Ceraroium confervoides Roth, Cat. Bot. 1, p. 151. 



