150 Mw Foslie. 



It seems doubtful to me whether the plant really oc- 

 curs even in the eastern part of the district. G. W. Traill, 

 who has determined Se well's collection of algse, has kindly 

 communicated to me that, as the supposed Bryopsis plumosa 

 was in very small fragments, and badly pressed on coarse 

 botanical drying paper, he had some hesitation in identify- 

 ing it. 



Distribution: Unknown to me. It is said to have been 

 found at Vardo. 



Fam. Characiacese (Nag.) Wittr. 



Gotl. och 01 Alg. p. 32; Nag. Gatt. einz. Alg. p. 64; excl. gen. 



Gen, Chlorochytrium Cohn. 

 Biol. Pflanz. p. 102. 



Chlorochytrium (?) inclusum Kjellm. 



N. Ish. Algfl. p. 392. 

 Deser. Chlorochytrium (?) inclusum Kjellm. 1. c. 



De-Toni, Syll. Alg. 1. p. 687. 

 Fig. „ ; „ Kjellm. 1. c. t. 31, fig. 8-17. 



I found an endophytic alga in Dumontia filiformis, 

 which I suppose belongs to this species. At Tromso I have 

 seen certain specimens in Halosaccion ramentaceum. 



Distribution: Found at Mehavn, probably also occur- 

 ring at other places. 



Gen. Codiolum Al. Br. 

 Alg. unic. p. 19. 



Yugor Straits (N.-W. Siberia), as observed during the Voyage of the 

 ^Labrador" in 1888; with Summarised List of all the Species known 

 from the Islands of Novaya Zemlya and Waigatz, and from thjf? 

 North Coast of Western Siberia, . .. 



