ioo 



ji 



M. Fo.slie 



f* 



Syn. Fucus muscoides Gunn. 1. c. 2, p. 139. 



L 



J 



This species is, in general, sublitoral, but it occUrs SoMé- 

 times also in the litoral zone, in rock -pools, where I have 

 seen solitary specimens fastened to JBuci, It is most freq_uent 

 and hest developed on a depth of 2—10 fathoms, chiefly on 

 open coast, and often gregarious in pretty large masses. 



Distribution: Common along the whole coast and at 

 many places abundant. 



Gen. DicMoria Grev. 



Alg. Brit. p. XL. 



I 



Dichloria viridis (Miill.) Grev. 



r 



^1. c p. 39; Fucus viridis 



ém 



. Fl. Dan. t. 886. 



Descr. Dichloria J. G. Ag. Spee. Alg. 1;, p. 164. 

 Fi^. Bcsmarcstia viridis Harv. Phyc. Brit. p. 312. 



Exsicc. 



n 



ff 



u 



Kiitz. Tab. Phyc. 9, t. 92. 

 Aresch. Alg. Scand. exsice. No. 



88. 



8yn. Fucus viridis Wg. Fl. Lapp. p. 503. 



Gigartina viridis Lyugb, Hydr. Dan. p. 44. 



This plant is sublitoral, and it thrives best on open coast, 

 usually on a depth of 2 — 10 fathoms and a bottom formed 

 of pebbles, shells and Lithothamnia, descending to 15 fath- 

 oms or perhaps farther down. It is in general fastened to 

 smaller stones or to Lithothamnia, growing gregarious and 

 often in considerable masses. In a place in the neighbour- 

 hood of Tromso the plant is partly also litoral, forming a 

 broad belt from about 2 feet below to a little above extreme 

 low- water mark, and, consequently, nncovered at lo west spring 

 tides. Here it arises in May and disappears in October. I 

 do not know when it develops its reproductive organs. 



Distribution: Common along the whole coast and at 



many places abundant. 



6- 



