60 SB A AfOSSES. 



near low tide, under the curtain of the overhanging 

 I^ud. It is a very dark, dull green. Its filaments are 

 coarse, stiff, straight and rigid. Its secondary branches 

 divide at very acute anfles, and therefore, as in C. 

 arcta, cluster and cling isomewhat closely about the 

 principal branches. There is a decided tendency in 

 the main branches to separate firom each other, and 

 stand aloof with their closely clustering branchlets. 

 These separate pencils of dark green filaments are of 

 quite unequal length. The tuft is commonly three 

 or four inches high, but sometimes, six or eight. It 

 . is not uncommon firom New York city northward; but 

 it certainly is more beautiful on our northern New 

 England shores. It is reported from Nahant and 

 Cape Ann, by Mr. Collins and Mrs. Bray, from March 

 to December. 



Cladophora cartilaginea, Rupr. 



Is a California plant, and is found growing, as Dr. 

 Anderson informs me, at all seasons, on rocks and 

 other sea weeds, in tide pools, very common at Santa 

 Cruz. Its robust, coarse frond; perceptable harsh- 

 ness to the touch; dull green color; stiff, straight 

 branches, set at an acute angle with the stem; its 

 refiisal to adhere to the paper, as well as its general 

 appearance, relate it closely with C. rupestris. It 



