90 I'- IinuGi;siiN. 



TrihoiUMiia Di rb. el Sol. 



1. T. bombycinum (Ai^.l Derb, el Sol., Mem. pbys. Alg. p. 18, 

 tab. IV; lig. 10 '2\. Ha/en, Ulolhricaceæ. j). 1.S4, lab. 25, fig. 1— .'i. 



Larsen, Frcslnv. Alg. Kast Greenl. p. lOcS d-oiiiul in several localities from Kap 

 Dan ((50° 31') to Sabine (74° 30'). 



Lai. cell. --6—8//. 

 Luc. iJlle SiKMiæs. 



Prasiolaceæ. 



Prasiola Ag. 



1. P. velutina (Lyngb.) Wille, Færøernes Ferskvandsalger (Bot. 

 Notiser, 1897, p. 32, lab. 1). 



Only a few filaments were found, but these agreed quite well 

 with the original specimen of Lyngbye. Only filaments with a single 

 row of cells were present. 



Lat. of the filament = 14 — 18//. 



I^oc. Lille Snciiæs. 



Oedogoniaceæ. 



Oedogouium Link, 

 O. sp. Sterile. 

 Lat. fil. = 5,5//. 



Lo c. Found in a small lake at Hvalrosodde. 

 O. Sp. Sterile. 

 Lat. fil. = 11//. 

 Lo c. L'ound in the same localit}' as the ahove-mentioned. 



Bulbochaete Ag. 

 B. sp. Sterile. 

 A form with short cells. 

 Lat. cell. =- 24//; long. cell. -- 27//. 



Loc. F'ound in a collection from a small lake at Hvalrosodde. 

 B. sp. Sterile. 



A form with longer cells {Bulbochœte setigera'}). 

 Lat. cell. = 24//. 

 Loc. Found in the same collection as the above/lmentioned. 



6—4—1910. 



