51 



G г. о г. : Angmagsalik, Unartok (in thermal water in the littoral 

 region). 



Chætomorpba Kütz. 



87. Ch. tortuosa (Dillw.) Kleen, K. Rosenv. Grl. Havalg. 

 p. 917, Deux. Mém. p. 104. 



It was collected sterile in September in company with 

 Cladophora gracilis and Chœtomorpha Melagonium. 

 Gr. or.: Tasiusak. 



88. Ch. Melagonium (Web. et Mohr) Kütz., К. Rosenv. Grl. 

 Havalg. p. 917, Deux. Mém. p. 104. 



The species was gathered in May — September in a depth 

 of 1 — 8 fathoms (f. typica) and in the littoral region (f. rupincola), 

 both in sheltered and exposed places. 



f. typica. 



The typical form seems to be common. 



Gr. or.: Tasiusak, Kangarsik, Ikerasak, Tiningnekelak, Smal- 

 sund, Stenö, Ödesund, Kangerdlugsuatsiak, Turner Sund, Sabine 0. 



f. rupincola. 



The specimens are 9 cm. high and overgrown with Diatoms. 



Gr. or.: Nualik. 



Urospora Aresch. 



89. U. mirabilis Aresch., K. Rosenv. Grl. Havalg. p. 918, 

 Deux. Mém. p. 106. 



The specimens belong to the typical form. The fructiferous 

 filaments are up to 70 /j. thick. The species was collected in 

 June, July and September, with sporangia in June and Sep- 

 tember. Occurs in company with ülothrix flacca and other 

 species of ülothrix. 



Gr. or.: Smalsund, Nualik. 



Fam. Mycoideaceœ. 

 Pringslieimia Rke. 



90. P. scntata Rke,, K. Rosenv. Grl. Havalg. p. 924. 



