44 



M. Foslie 



It has been fonnd with tetrasporangia in June, July and 

 August, in the later month however sparingly; with spora- 

 carps at the end of May, in June, July and August. 



Distribution: Commonly spread along the whole coast; 

 at some places rather common but not plentiful. 



■^ 



4 



Gen. Callithamnion (Lyngb.) Thur. 



in Le Jol. Liste Alg. Cherb. p. 17; I^yngb. Hyår. Dan. p. 123; lim. mut 



jr 



^Callithamnion scopulorum Ag. 



Spee. Alg. 2, p. 166. 

 Jfescr. Callithamnion scopulorum J. G. Ag. Spee. Alg. 2. p. 47. 



Tig. 



Y> 



H 



„ Kiltz, Tab. Phyc. 11, t. 70. 



roseum ^ tenue Lyngb. Hydr. Dan. t. 39. 



J. G. Agardh has had the kindness to exa- 



/ 



Litoral, occurring on steep rocks on open shore, and of- 



I 



ten jointly with Sphacelaria olivaeea^ PHlota elegans and 

 Delesseria alata. When growing isolated, it forras small 

 ,j::Qundish and sometimes confluent tufts. With respect to the 

 ramification it is very nearly related to the form of C.poly- 

 ^per-^um found at Nordland and West-Finmarken. Cp. K j ell m. 



r ■ ' 



Ish. Algfl. p. 223. Hat the present species has another ge- 

 neral habit than that one, and it never grows epiphytic on 

 other algæ. 



mine it, and he finds it agreeing pretty well with the origi- 

 nal specimen of L y n g b y e in the herbarium of C. A. 

 Agardh. The only difference is, that L y n g b y e's spe- 

 cimen is a litte shorter, with shorter cells, and more robust, 

 and therefore more densely branched. It reaches a length 

 ^f 3 cm., most commonly about 2 cm. Specimens collected 

 in the earlier half of August were tetrasporiferous. At West- 

 Finmarken I have tåken it with tetrasporangia in the ear- 

 li^r half of September. 



Distribution: Onl^ found at Vajrdo, pretty plentiful but 



f 



\ 



? 



