GREEN ALGM. 63 



Cladophora fluxuosa, Griff. 



Harvey Considers this plant nearly related to the 

 last, if it is even specifically distinct. It is chiefly 

 distinguished by its less compound habit, the length 

 and nakedness of the jarincipal branches, and their 

 fluxuosity. It grows in rock pools between tides, is 

 not very common, and is found both north and south 

 of Cape Cod. 



Cladophora L/Etevirens, Dillw. 



The filaments are rather loosely tufted, feathery, 

 robust and somewhat firm or rigid; color, a pale 

 green, as its name indicates, faded, and without gloss 

 when dry. " Filaments three to four inches long, or 

 more, much branched, main stem flexuous or angularly 

 bent, set with alternate or scattered occasionally 

 opposite, repeatedly decompound patent branches." 

 Articulations of the main stem, four to eight times, 

 of the ramuli, three to four times as long as broad. 

 Substance not very soft. It adheres, but not very 

 strongly, to paper, in drying. It is found in New 

 York Bay, on the Massachusetts coast, and in Cali- 

 fornia, in the latter region being quite common. Mr. 

 Collins has collected it at Nahant and Revere between 

 tide marks. 



