RED ALG^B. 1G7 



Barbara Dr. Dimmick and Mrs. Bingham find it grow- 

 ing near low-tide, and in deep water, upon the rocks, 

 from which it is thrown upon the beach. Mr. Cleve- 

 land gives substantially the same account of its habit 

 at San Diego, where he collects it from November to 



March. 



Laurencia virgata,* Ag. 



This species has much the same geographical range 

 as the last, but is not so common, I judge, from the 

 comparative infrequency with which specimens find 

 their way to the Atlantic states. It differs also, in being 

 cylindrical in stem and branches, and by having the 

 branches set all around the stem, and not on two 

 sides only. The general habit of the branching, 

 except as to that, is much like the last. In size, 

 substance and color it greatly resembles Z. pinnaHfida, 



Order.— CHYLOCLADIE^.. 

 Q^Qnus.— CHYLOCLADIA,^ Grev. 



The only plant which later revisions have left in 

 this genus from our flora is the one which both Harvey 

 and Agardh call Lomentaria ovalis. But as it has 

 been lately known, and distributed, among American 



* Virgata, refers to its long, rod-like, branches, 

 t Chylocladia ^= Juicy-branched. 



