110 M. Fosiie. 



Descr. Ectocarpus confervoides s. s. Kjellm. Scand. Ect. och Tilopt. p. 77. 



Fig. „ patens Kiitz. Tab. Phyc. 5, t. 67. 



JExsicc. „ litoralis var. Aresch. Alg. Scand. exsicc. Nr. 111. 



f. penicillata Ag. 



Spec. Alg. p. 162. 

 Descr. Ectocarpus confervoides f. penicillata Kjellm. 1. c. p. 80. 

 Fig. Corticularia Nsegeliana Kiitz. Tab. Phyc. 5, t. 81. 

 Exsicc. Ectocarpus siliculosus Aresch. Alg. Scand. exsicc. No. 112. 



Syn. Conferva litoralis Wg. Fl. Lapp. p. 513; ex parte. 



„ (Ectocarpus) siliculosa Sommerf. SuppL p. 193. 



Litoral and sublitoral. In the former zone it occurs 

 chiefly at low-water mark and usually fastened to other al- 

 gae, as Fuci, Chordaria flagelliformis and Cladophorce. In the 

 sublitoral zone it descends to a depth of about 10 fathoms, 

 generally attached to other algae, as Chorda filum and Litho- 

 thamnia. It appears on open as well as sheltered coasts, 

 and also enters the inner end of the deep bays. The plant 

 bears gametangia in June, July and August. In the middle 

 of June I found a solitary specimen provided with zoospor- 

 angia together with gametangia (f. siliculosa). 



Distribution: Pretty common everywhere and at several 

 places abundant. 



Ectocarpus fasciculatus Harv. 



Man. p. 40; ex parte, sec. Kjellm. Scand. Ect. och Tilopt. p. 89. 

 Descr. Ectocarpus fasciculatus Kjellm. 1. c. 

 Fig. „ „ Harv. Phyc. Brit. t. 273. 



Exsicc. „ „ Aresch. Alg. Scand. exsicc. Nr. 114. 



Litoral and sublitoral, chiefly fastened to other algae, 

 as Cladophora, the lamina of Laminaria hyperborea, L. digi- 

 tata and the stipe of Maria. It is only met with on open 

 coast, and it bears gametangia in the later half of June, in 

 July and August. 



Distribution: Scattered and rather scarce along the un- 

 sheltered part of the coast, at some places, for inst. Kjolle- 

 fjord, pretty plentiful. 



