REIKEVI Go 
270 
more delicate species of submersed Algce to attach 
themselves to the rocks, and the violence of the 
surf prevents such as come from more sheltered 
spots from being thrown uninjured upon the 
beach. Ulvce I saw none, except U. lactuca and 
timbili calls, and among Fuel, F. r ament a ecus was 
the only one which came under my observation, 
that has not. a place in the British list. With the 
larger kinds employed in the making of kelp the 
rocks every where abound, and I should think 
that the advantages resulting from the manufac¬ 
ture of this article, which is carried on in Scot¬ 
land to such a great extent, and has proved so 
enormous a source of wealth to many of the He¬ 
brides, might, also, with the fostering aid of a 
benevolent and liberal government be extended 
to the wretched Icelanders, who have so much 
greater need of it. A. plant, which has been 
found in Lapland, and which Doctor Wahlen- 
berg, in a letter to Mr. Dawson Turner, calls 
Rivularia cylindrica # of his MSS. is extremely 
common in the rivers and fresh-water lakes of 
Iceland, but appears to me to have no nearer an 
affinity to the genus Rivularia , than it has to 
Conferva, to which latter Doctor Roth has lately 
referred a plant formerly known under the name 
* See page 71. 
