

Co-ntribution. I, 



^ 



103 



Heser. Dictyosiphon (Coilonema) chordaria Aresch. Obs. Phyn. 3, p. 32. 



Fig. 



» 



chordaria Aresch. Phyc. Scand. t. 8, B. 



Syn. Dictyosiphon (Coilonema) Finmarkicum Fosl. Aret. havalg. p. 6' 



A litoral plant, in general occurring in rock-pools in the 

 tipper part of the zone, on open coast. Large and well de- 

 veloped specimens have been coUected at Vardo, attaining a 

 length of 25 cm. It bears zoosporangia in August. The 

 plant described by me some years ago (1. c) under the name 

 of Dictyosiphon (Coilonema) FimnarJcicum is identic withthe 

 above quoted form of the present species. 



Distribution: Found at Sværholt, local and rather scarce, 

 Vardo, local but abundant, and at Bugonæs, rare. 



Coilonema filiformis Fosl, 



I 



in TromsO Mus. Aarsh. 10, p. 178. 

 Descr. Coilonema filiformis Fosl. 1. c. 



il 



Fig. 



7) 



r> 



ti 



» 



t. 3, fig. 1—2, 



This species seems to be well differentiated. However 

 the specimens at my disposal are rather few and badlypre- 

 served, found among earlier coUections from Finmarken. The 

 plant is litoral, growing in rock-pool.s in somewhat exposed 

 localities. I have only a couple of barren specimens from 

 East-Finmarken, but at West-Finmarken it has been tåken 

 with zoosporangia at the end of June, 



Distribution: Only found at Berlevaag, very rare. 



:i 



I 



Gen. Dictyosiphon (Grev.) Aresch. 



Bot. Not. 1&73, p. 164i Grev. Alg. Brit. p. 55; char. mut, 



4 



Dictyosiphon corymbosus Kjellm. 

 N. Ish. Algfl. p. 380. 



DescT, Dictyosiphon corymbosus Kjellm. 1. c. 



^ig^ 



„ t. 26, fig. 12—15. (f. abbreviata). 



^ 



I met with some few specimens of a Dictyosiphon, which 



Ithink 



..J^ 



