RED ALG^E. 193 



Algae in deep water. It is to be looked for among 

 the debris left upon the strand by the waves. Professor 

 Eaton found it near Eastport, Me. in tide pools, an 

 unusual habitat, I must think. It may be collected 

 throughout the season. It adheres well to paper, and, 

 when carefully laid out makes a beautiful specimen. 



Genus.— PL OCAMIUM* Lyngl?, 



Plocamium coccineum, Lyngb. 



A plant of the scarlet Plocamium is well repre- 

 sented in Plate XV. It is one of the most brilliant, 

 beautiful and common of the California Algre. Few 

 collections of " Sea Mosses " will come from the 

 Pacific coast, which will not contain more or less of 

 them. It grows between tides in pools, and below. 

 Its color is a dark lake red, often faded to a lighter 

 hue. The substance is cartilaginous. The frond is 

 narrow, one-tenth to one-eighth of an inch wide, from 

 three to eight inches high, flattened and branched 

 from the edges, by stout, flattened, alternate branches, 

 some long and some short. 



Plants of this species may be easily and infallibly 



* Plocamium = Braided hair. 

 13 



