116 



If* Foslie. 



lowii) and sublitoral (f; Farlowii). In the former case it 

 grows on roets and shells (Mytilus) or attached to other 

 algæ, as Ehodymenia palmata, Halosaccion ramentaceam and 

 Oigartina mamillosa in the lower part of the zone. In -the 

 latter case it has been found fastened to Desmarestia ande' 

 ata on a depth of 2-5 fathoms. It seems to occur only 

 on open coast and to thrive best in much exposed localitiéé. 

 Specimens furnished with zoospores have been tåken in July^ 



and August. 



Distribufion: Found at KjoUefjord, pretty plentiful 



but local, Mehavn, rather . scarce, and at Finkongkjeilen, 



scarce. 



Monostroma saccodeum Kjellm. 

 N. Ish, Algfl. p. 365, 



f. tijpica^ 



Beser, Monostroma saccodeum Kjellm. 1. c. 

 Fig, „ „ » f 



t. 28, fig. 1—10, 



f. cylindracea Kjellm. '(nob.) 



Beser, Monostroma cylindi-eaceum TCjcllm. 1. c. p. 363. 

 Fig, n j, „ , » t. 30. 



I have often met with -M. cylindracemn but especially 

 M, saccodeum along the coast of East-Finmarken as well as 

 farther south, but I have been unable to find any real limit 

 between them. I consefjuently consider them as difPerent 

 forms of the same species, regarding -M. saccodeum the typi- 

 cal one.^ I have even seen specimens of i. cylindracea vånc^h. 

 nearly approache M, lubricum Kjellm. 



The present plant is litoral, growing in pools in the 

 upper part of the zone, on stones, shells of Balanidæ, or fa- 

 stened to other algæ, as Fuci, Oigartina mamillosa, Bhodo- 



i 



1. 



I want here to remark, that I some years ago probably have distri- 

 buted M, angicava or another spedes under the name af M. sacco- 



deum. 



