LIST OF THE SEA-WEEDS OR MARIXE ALG.E, ETC. 293 



93. C. fracta, Fl. Dan. WoocVs Hole, in Eel Pond. 



94. C. flexuosa^ Griff. Wood's Hole, Goverument Wharf. 



95. Clicetomorplia Flquotlana, MoxT. Gay Head, Moutauk. 



96. C. (crea, Dilltv. Gay Head. 



97. C. sutoyia^ Berk. Gay Head. 



98. C. Utorea, Hart. Gay Head. 



98. C. tortuosa, Dillw. Wood's Hole. 



OSCLLLATORIACE.g^. 



100. Lynghya majuscula, Harv. Wood's Hole, Xauslion, Edgartown, 



called by lady collectors mermaid's liair. 



101. Calotlirix confervicola, AG. Wood's Hole. 



102. C. scopuJorum, AG. Very common everywhere on rocks. 



EnrULARIACE^. 



103. Bivularia atra. . Though not noticed before in America, I 



found it not uncommon on shells and stones at Wood's Hole. 

 Besides the list above given there remain a number of Callitliam- 

 nia and Cladoi)liorce of doubtful species, not an uncommon oc- 

 currence with collectors. It is also probable that there are 

 other species of Lynglya and Calothrix to be found at Wood's 

 Hole. 



Localities of algcc, either rare or neic to American localities^ not included 



in the p receding list. 



Ralfsia verrucosa^ AG., (R, deitsta, Berk.) For the first time in 

 America found by me at Little ^ahant, October, 1871. Insig- 

 nificant looking, but probably not uncommon. 



Calliblepliaris ciliata^ Ktixz. Collected by Professor Eaton^ Mr. 

 Whitney, and myself, at Straightsmouth. Island, off Cape Ann, 

 Massachusetts, September, 1871 j not very abundant. Concep- 

 tacular fruit forming on some of the specimens. 



Si^hacelaria radicans, AG. Doubtfully located by Harvey at Bev- 

 erly. In fruit at Little !Xahant, October, 1871. 



Gymnogongrus Xorvegiciis, Grey. Lynn Beach, November, 1871. 

 A single specimen covered with conceptacles. Narrower than 

 most European specimens, which was also the fact in the speci- 

 men sent to Harvey from Penobscot Bay, by Mr. J. Hooper. 



Ceramium Sooiyeri^ Hary. Straightsmouth Island. 



Fucus distichns, L. An alga, which I regard as undoubtedly this 

 species, I found growing in patches near high-water mark, at 

 Marblehead, ]\[assachusetts, in May, 1871. I have seen grow- 

 ing, in considerable abundance at various stations of our 

 coast, a Fucns which I supposed at first to be an unripe state 



