44 M - Foslie 



It has been found 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. 



Gen. Callithamnion (Lyngb.) Thur. 

 in Le Jol. Liste Alg. Cherb. p. 17; Lyngb. Hydr. Dan. p. 123; lira, mut. 



Callithamnion scop u lor um Ag. 



Spec. Alg. 2, p. 166. 

 Descr. Callithamnion scopnlorum J. G. Ag. Spec. Alg. 2. p. 47. 

 Fig. „ „ Kfitz. Tab. Phyc. 11, t. 70. 



„ roseum £ tenue Lyngb. Hydr. Dan. t. 39. 



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

 ten jointly with Sphacelaria olivacea, Ptilota elegans and 

 Delesseria cdata. When growing isolated, it forms small 

 roundish and sometimes confluent tufts. With respect to the 

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

 spermum found at Nordland and West-Finmarken. Cp. K j ellm. 

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

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

 other algse. J. G. A g a r d h has had the kindness to exa- 

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

 nal specimen of Lyngbye in the herbarium of C. A. 

 A g a r d h. 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 

 of 3 cm., most commonly about 2 cm. Specimens collected 

 in the earlier half of August were tetrasporif erous. At West- 

 Finmarken I have taken it with tetrasporangia in the ear- 

 lier half of September. 



Distribution: Only found at Vardo, pretty plentiful but 

 local. 



