38 M. Foslie. 



pica, the colour lighter (between f. typica and Ch. filum), and 

 they get green after drying. By f. typica the hairs keep 

 their colour in drying, or get a little darker. The spores 

 were by some specimens elliptic or subelliptic, 35 — 48 jx long 

 and 12 — 16 fx thick, and the paranemata subclavate. By 

 others, and more common, the spores were larger, up to 72 

 jx long and up to 24 fx thick, and with reference to the shape 

 often agreeing with f. typica, though generally thicker in 

 proportion to the length. 



The species in question is sublitoral. The typical form 

 lives in similar localities as Ch. filum, often growing togetb? 

 er with that species. It becomes 2 m. long. At Tromso 

 it attains a length of about 4 m. The form subfulva gene- 

 rally grows in the lower part of the named zone, on a depth 

 of 10 — 15 fathoms with loose gravelly bottom. I found a 

 solitary specimen on a depth of about 5 fathoms. The spe- 

 cies bears zoosporangia in June, and it seems to disappear 

 in the first part of July. 



Distribution: The typical form is probably pretty com- 

 mon along the whole coast. I have collected it at Kjolle- 

 fjord, local but pretty plentiful, and, according to Areschoug, 

 it has been found at Vardo. The form subfulva found at 

 Kjollefjord, local and rather scarce; and at Mehavn, rare. 



Fam. Asperococcacese Farl, 



New. Engl. Alg. p. 88. 



Gen. Asperococcus Lamour. 

 Ess. p. 277. 



Asperococcus echinatus (Mert.) Grev. 



Alg. Brit. p. 50; Conferva echinata Mert. in Roth, Cat. Bot. 3, p. 170. 

 Descr. Asperococcus echinatus J. G. Ag. Spec. Alg. 1, p. 76. 

 Fig. „ „ Harv. Phyc. Brit. t. 194 



JSsssicc, „ „ Aresch, Alg. Scand. exsicc. No. 867i 



