723 



Even the most sheltered places here are not calm enough for 

 this alga. When the wind blows on the shore, the sea washes over 

 the rocks, in hard weather, flowing over the »Iijde« itself. 



I have not met with any description of such a Fwcus-vegetation 

 growing on an exposed coast. Simmons, who found Fucns disti- 

 chus in its well-known habitat, the west coast of Sydero, writes (1. c. 

 p. 254): »Wo an der Westki'iste von Sudero Fucus distichus auftrilt, 



Fig. 154. Pelvetia canaliculata, and below that, Fucus spiralis. Illustration of a rock from Vaag's Ejde 



at Syder0. (F. B. phot.). 



konnte man vielleicht am richtigstcn eine besondere Formation unter- 

 scheiden, die dann die Fucus distichus-Porphy ra-iorn^^Won zu nennen 

 ware. Fucus distichus bewolint namlich mit Vorliebe abschiissige Fel- 

 sen in der Nahe der Ebbengrenze und wachst da mit Porphijra laci- 

 niata vermischt.« Judging b}' these words, Simmons seems hardly 

 to have got any distinct idea of tliis characteristic formation. Nor 

 have I met with any description of it from Norway, where it may, 

 however, be supposed to grow. It has therefore been very inter- 

 esting to me, to receive the following report from Mr. Norum in 

 Haugesund. »A Fucus-formation corresponding exactly witli those 



