248 SEA MOSSES, 



found on the coast of California, and in the north 

 Pacific very common. 



PniXTTA EI-ECA-VS, BON-NEM. 



This is a much more delicate plant than the last, 

 narrower, thinner and of a darker color. It is common 

 from New York northwartl It may l)C found 

 alwap growing upon the perpendicular of cliiis, 



under the overhanging *' Rockwced," ne.ir low-w 

 mark. 'ITut is the only situation in whicli I have 

 ever seen it growing. Hut I have r-.!V led it in no 

 little abundance about the beach, ;> l>ort, in ihc 



summer and fall, among ihc mass «m ><-a weed left 

 by the waves. ITiere, it must grow in deep water. 



The fronds arc nearly cylindrical, but branch 

 like the last, from opposite sides in one plane, dc< om- 

 pound pinnate, the pinnx and pinnukc < 

 a/skr, though, I think, in roost cases one of them is 

 apt to be much smaller than the oih * 



and small parts alternate, so tlial the symmetry of 



frond is maintained. Often the smaller pini. 



ppresscd altogether, and the branching will thence 

 seem to l>c alternate. 



The ultimate ramuli are composed of a single row 

 of square or oblong cells. This is a fme, delicate 

 and beautiful plant. It adheres well to paper. The 



