Contribntion. I. 



153 



and coarser plant than that oiie. I ara, therefore, obliged 

 provisionally to regard it a distinct species. 



The present plant grows on wood-work in the upper 

 part of the litoral zone together with Urospora penicillifm'' 

 tnis, Specimens collected in the beginning of August were 

 sparingly zoosporiferous. 



JDistrihtition: Found at Vardo, pretty plentiful butlo- 

 cal. 



Codiolum intermediura Fosl. 



in Tromso Mus. AarRli. X, p. 103, 

 J^escr. Codiolum intermodium FosL I. c. 



Fig. 



Bxsi 



ICC, 



» 



y> 



» 



n 



t. 2, fig. 1-12. 



Wittr. et Nordst. Alg. exsicc. Nr. 954. 



This species is more variable than any other of the ge- 

 nus. However it appears to be pretty well differentiated. 

 The club is elongated-obovatej obovate or roundish, and the 

 stipe often is rather sharply delined from the clava. 



The plant grows on rocks and vvoodwork in the upper 

 part of the litoral zone, together with other smaller algæ, 

 as Urospora, Cahthrix and Glococapsa. Specimens with zoo- 

 spores have been tåken in the earlier half of August, 



Distribufion: Found at Vardo, localand rather scarce, 

 s^nd at Kjelmo, scaxce. 



On the following page I give a comparative table of 

 the species af Codioltvm hitherfco known. 





. 



f n 





ry 



"v 



