414 



The typical form is undoubtedly quite common along the coasts 

 of the Færoes, and has hitherto been found in the following piaces: — 



Bordo: Kvannesund H. J.); Str. : Thors- 

 havn (!), Gliversnæs (!); Sando: Troldhoved 

 (!); S t. Di mon (!); Syd.: Frodebo (!), Fa- 

 mien (Ostenfeld, !). Var. irregularis has only 

 been found on Syd.: Frodebo !) where it 

 grew between tide-marks on Himanthalia 

 lorea, associated with the typical form. 



91. E. tomentosus (Huds.) Lyngb., 

 Hydrophyt., p. 132; Kjellm., N. I., p. 



344 (279). 



A specimen which grew epiphytic 

 on Fucus vesicolosns at the exit of a 

 stream into Kalbakfjord was peculiar 

 on account of a large upper portion of 

 the branches having been transformed 

 into plurilocular sporangia which ri- 

 pened and were emptied in basipetal suc- 

 cession (fig. 73). As I am not aware of 

 any previous mention of such a case 

 I have illustrated this in fig. 73. The 

 plant was otherwise quite normal and 

 had the typical, hooked branches. The 

 filaments were 8 — 10 [i thick. 



Ectocarpns tomentosus belongs to 

 the littoral zone and is quite a common 

 epiphyte, especially on different Fucus- 

 species, Himanthalia lorea, Alaria, Gi- 

 gartina, and in general on larger algæ 

 growing between tide-marks. It occurs 

 both on exposed coasts and in sheltered 

 situations and grows luxuriantly even 

 Pig. 73. Ectocarpns tomentosus (Huds.) in the interioi - of fjords where fresh- 



Lvni'b. Parts of filaments witli the upper , ■ ,1 t-»i -i i 



... water runs into the sea. Plurilocular 



portion of the branches transformeu into 



plurilocular sporangia. a 120:1, b 330: 1. Spol'ailgia OCCUlTed ill April, May, Jllly 



and November. 



This species, which Lyngbye reports as follows: - »Habitat ad 

 insulas Færoenses, ul in sinu Qualboe Suderoe, imprimis Himanthaliæ 

 loreæ adhærescens«, is common everywhere along the coasts of the 



Færoes. 



