KONGL. SV. VET. AKADEMIENS HANDLINGAR. BAND. 20. N:0 5. 285 



Gen. Myriotricliia Harv. 



ill Hook. Journ. Bot. 1, p. 300. 



Myriotrichia filiformis Hasv, 

 Man. p. 44. 



Descr. Myriotrichia filiformis J. G. AG. Spec. Alg. 1, p. 14. 

 Fig. » » Harv. Phyo. Brit. t. 156. 



Syn. Myriotrichia filiformis Kleen, Nordl. Alg. p. 39. 



Habitat. Epiphytic on literal algaB, as Corallina officinalis, Asperococcus echinatus, 

 ^cytosiphon lomentarius, Dictyosiphon hippuroides a. o., which are sometimes completely 

 covered by it. I have met with it only on exposed coasts. It bears zoosporangia in 

 July and August on the arctic coast of Norway. 



Geogr. Distrib. It belongs to the Atlantic region of the Polar Sea. Its northern- 

 most point is Oxfjord in Finmarken about Lat. N. 70°. 



Localities: The Norioegian Polar Sea: Nordlanden at Gjesvser; Finmarken local, 

 but rather abundant at Oxfjord. 



(?) Gen. Gleotliamnion Cienk. ^) 



Bericht. p. 25. 



Gleotharanion palmelloides Cienk. 

 1. c. 

 Descr. et Fig. Gleothamnion palmelloides Cienk, 1. e. p. 25 et t. 1, fig. 12 — 16, t. 2, fig. 17 — 19. 



Habitat. Cp. Cienk. 1. c. 

 Locality: The White Sea. 



Series OHLOROPHYLLOPHYCE^ (Rabenh.) Wittr, 

 Pithoph. p. 42; Rabenh. Fl. Eur. Alg. 3, p. 1 lira. mut. 



Fam. CH^TOPHORACE^ (Hakv.) Wittr. 



PI. Scand. p. 15. Chsetophoroidese Harv. Man. p. 10; ex parte. 



Gen. Ohsetopliora Schrank. 

 Bair. PI. Cfr. Wittr. Gotl. och 01. Alg. p. 25. 



Chaetophora maritima Kjellm. 

 Spetsb. Thall. 2, p. 51. 

 Descr. et Fig. Chaetophora maritima Kjellm. 1. c. et t. 5, fig. 15 — 16. 



Syn. Chaetophora maritima Kjellm. 1. c. et Algenv. Murm. Meer. p. 53. 



') By the sign of interrogation I have meant to denote that I am uncertain if this genus belongs to the 

 family of Ectocarpacem. 



