747 



dashes heavily into the inlet. This Fiicacecc -\egeiiii\on was widely 

 distributed horizontally, but not vertically, as was easil}^ observed 

 on the perpendicular walls of the inlet, w^here all three species 

 grew together, forming a belt hardly more than a few feet broad. 

 It should not be forgotten, however, that ebb and How are scarcely 

 perceptible on this part of the coast. 



Fig. 158. Fiicus inftatus. A small part of the Fucus in/Ja<us-association illustrated in fig. 157. 



(F. B. phot.). 



From Thorshavn, which has rather an exposed situation, south- 

 ward to Arge, a Fzzcaceoe -vegetation is moreover found, with Fiiciis 

 spiralis uppermost, Fiiciis inflatiis lowest (see figs. 157 and 158). To 

 these must be added AscophijUiim nodosum in somewhat sheltered 

 places, and Fucus vesiculosus in the most sheltered. At Glivernses, 

 still more toward the South, and further on in the same direction, 

 the coast becomes more exposed and only the dwarfish forms of 

 Fucus spiralis and F. inflatus are found. 



Examples of the above-mentioned Fucacecp- formation will be 



Botany of the Fieroes. 



48 



