H 



M. Foslie. 



Descr, Elachista lubrica Aresch. Obs. riiyc. 8, p. 18. 



lExsicc, 



m 



» 



Alg. Scand. exsicc. No. 217. 



This species is litoral and sublitoral. In the former 

 case it occurs gregarions and at many places in greatabun- 

 dance. It is usually fastened to Hahsaccion ramentaceum 

 and Ehodomela lycopodioides, but often also to other species 

 as Fuci, Gystoclonium purpurascens, Enteromotpha compressa 

 and Desmarestia acudata. In the sublitoral zone it has been 

 found scattered on a depth of 5—15 fathoms. It thrives best 

 on open coasts, but enters also nearly to the inner end of 

 the deeper bays. It bears zoosporangia in June, July and 

 August, 



Distrihution: Coramon and abundant especially along the 

 open part of the coast. ■{ 



Fam. Coilodesmeæ noir. 



Gen. Coilodesme Stromf. 



Meeresalg. Isl. p. 173. 



Coilodesme bulligera Stromf. 

 1* c. 



jPescr, Coilodesme bulligera Stromf. Algveg. Isl. p. 48. 



Fig> 



M 



ff 



t 2, fig. 9-12. 



I found this species already in 1882, or the year before 

 Stromfelt detected it at the coast of Iceland, but as I 

 then only found barren specimens, it was put a side till I 

 again met with it in 1887, bearing zoosporangia. 



The Finmarkian specimens seem, with reference to the 

 habit and external appearance, to differ somewhat from the 

 Icelandic ones. Only a few specimens that I collected last 

 year appear to coincide with the latter. Thecolouris, how- 

 ever, light olive brown. But almost all the specimens for- 

 merly tåken are gutshaped, more or less inflated and very 



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} 



