Contribution. I. 101 



Fam. Dictyosiphonese Thur. 



in Le Jol. Liste Alg. Cherb. p. 14. 



Gen. Phloeospora Aresch. 1 

 Bot. Not. 1873, p. 163. 



Phloeospora subarticulata Aresch. 

 1. c. p. 164. 

 Descr. Phloeospora subarticulata Arescb. Bot. Not. 1876, p. 33. 

 Fig. Dictyosiphon foenieulaceus £ b. Areseh. Phyc. Scand. t. 5, fig. F. 

 „ „ Lyngb. Hydr. Dan. t. 14 C. fig. 3. 



Phloeospora subarticulata Aresch. Obs. Phyc. 3, t. 3, fig. 2—5. 

 Exsicc. Dictyosiphon foenieulaceus var. subarticulatus Aresch. Alg. Scand. 



exsicc. No. 104 et 318. 



This is, as far as I have seen, an alga sparingly disper- 

 sed along the coast of East-Finmarken. I have found it only 

 at two places, growing in rock-pools in the lower part of 

 the litoral zone, and in the sublitoral zone on a depth of 

 4 — 6 fathoms. 



Distribution: Only found at Berlevaag and Vadso, very rare. 



Phloeospora tortilis (Rupr.) Aresch. 



Bot. Not. 1876, p. 34; Scytosiphon tortilis Rupr. Alg. Och. p. 373. 

 Descr. Phloeospora tortilis Aresch. 1. c. 

 Fig. Dictyosiphon tortihs Gobi, Brauntange t. 2, fig. 12 — 16. 



Phloeospora tortilis Kjellm. Spetsb. Thall. 2, t. 1, fig. 1. 

 Fxsicc. „ „ Aresch. Alg. Scand. exsicc. No. 413. 



Litoral (and sublitoral?), appearing on open coast as well 

 as in the interior of the fjords. Zoospore-bearing specimens 

 have been collected at the end of August, at West-Finmar- 

 ken in the middle of the named month. 



Distribution: Commonly diffused along the whole coast, 

 at some places, for inst Berlevaag and Kirkenses, abundant 

 but local. 



'. I keep this genus distinct from Stictyosiphon Kiitz. following Kjell- 

 ia a n's apprehension. 



