35 



Farn. ElachistacecB. 



Elachista Dub. 



64. E. fiH'icoia (Veil.) Aresch., emend. K. Rosenv. Grl. Havalg. 

 |). 78, Deux. Mém. p. 74. 



a. typica. 



Gathered with unilocular sporangia in June and September. 



Gr. or.: Smalsund. 



ß. lubrica (Rupr.) K. Rosenv. 



Gathered with unilocular sporangia in May and June. In 

 one specimen gathered in May plurilocular sporangia were found 

 both in the lower part of the long assimilative shoots (comp. 

 Rosenv. 1. c.) and in the upper part of the short assimilative 

 shoots, it has been gathered in a depth of up to 19 fathoms 

 and grows on Halosaccion ramentaceum, Saccorhiza dermatodea 

 and on the stipes of species of Laminaria. 



Gr. or.: Tasiusak, Ikerasak. 



Leptonema Rke. 



65. li. fasciculatum Rke., Elachista fasciculata K. Rosenv. 

 Deux. Mém. p. 75. 



var. subcylindrica K. Rosenv. Grl. Havalg. p. 879. 



Was found together with Pylaiella on a stipe of Laminaria^ 

 sterile filaments 7—12/^ thick, fructiferous filaments 11 — 15//. 

 In almost all the filaments plurilocular sporangia were abundant; 

 these sporangia are often more prominent than usual in this 

 variety. Gathered in May. 



Gr. or.: Tasiusak. 



Fam. Ectocarpaceæ. 



Ectocarpus Lyngb. 

 Subgen. Pylaiella (Rory). 



66. E. littoralis (L.) Lyngb., K. Rosenv. Grl. Havalg. p. 881. 

 Deux. Mém. p. 75. 



var. opposita Kjellm. 



