SO M - Foslie. 



tached to other algse, as Corallina and lucacece. It is best 

 developed on open shore, but it is also to be met with on 

 sheltered places or even at the inner end of deep bays (f. 

 sarniensis). The length does not exceed 70 cm. Specimens 

 with young tetrasporangia have been collected in the middle 

 of July. 



Distribution: Common and plentiful all along the shore 

 and entering the inner end of the greater bays.- On several 

 localities it appears in great masses so as to determine es- 

 sentially the character of the vegetation. However, the num- 

 ber of individuals generally seems to be less than at West- 

 Finmarken. 



Fam. Gigartinacese (Kiitz.) J. Gr. Ag. 



Epicr. p. 173; Kiitz. Phyc. gener. p. 389; char. mut. 



Gen. Cystoclonium Ktitz. 

 Phyc. gener. p. 404. 



Cystoclonium purpurascens (Huds.) Kiitz. 



1. c. Fucus purpurascens Huds. FJ. Angl. p. 589. 

 De&cr. Cystoclonium purpurascens J. G. Ag. Epicr. p. 239. 

 Fig. Hypnea purpurascens Harv. Phys. Brit. t. 116. 



Cystoclonium purpurascens Kiitz. Tab. Phyc. 18, t. 15. 

 Exsicc. „ „ Aresch. Alg. Scand. exsicc. No. 76. 



Syn. Fucus confervoides Gunn. Fl. Norv. 2, p. 92. 

 Wg. FL Lapp p. 504. 

 „ elongatus Gunn. 1. c. p. 143. 

 Cystoclonium purpurascens Kjellm. Ish. Algfl. p. 202. 



A rather variable alga here as well as more southerly. 

 I cannot find any limit at all between the typical form and 

 the form dcndroidea described by K j e 1 I'm a n after speci- 

 mens from West-Finmarken. The plant is, as far as I have 

 seen, always litoral, occurring mostly in rock-pools or on 



