32 



Gathered with sporangia in September. The largest speci- 

 men 17 cm. long. 



Gr. or.: Tasiusak, Ödesund. 



Fain. Desmarestiaœœ. 



Desmarestia Lam. 



62. D. aculeata (L.) Lam., K. Rosenv. Grl. Havalg. p. 857, 

 Deux. Mém. p. 59. 



The species was gathered in May — July. The specimens 

 gathered in May are richly supplied with hairs. On the con- 

 trary only a few plants of a gathering from June had a small 

 number of hairs. 



It was found in a depth of 3 — 20 ( — 30) fathoms, both in 

 exposed and sheltered places. 



Gr. or.: Кар Dan, the estuary of the Kalerajuek near Кар Dan, 

 Tasiusak, Tiningnekelak, Turner 0, Sabine 0. 



var. media (Ag.) J. Ag., K. Rosenv. Grl. Bavalg. 1. с 

 Of this variety a few specimens were gathered in July; 

 hairs abundant; they perfectly agree both with the specimens 

 mentioned by Rosen vinge (1. с.) and with the Faeroes speci- 

 mens (Borgesen, Faer. Alg. p. 445). Gathered on open shore, 

 in a depth of 1 1 fathoms. 



Gr. or.: Кар Borlase Warren. 



53. D. viridis (0. F. Müll.) Lam., К. Rosenv. Grl. Havalg. 

 p. 859, Deux. Mém. p. 60. 



The length of the specimens varies from 3—40 cm., they 

 were all gathered in July, and in some of them hairs are 

 abundant. The species was found both in exposed and shel- 

 tered places, in a depth of 3 — 11 fathoms. 



Gr. or.: Turner Sund, Кар Borlase Warren, Sabine Ö. 



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