161 



IDTTBIONTIEJK. 



Halosaccion ramentaceum, Ag. 

 Gloucester (Mrs. H. A. Cochrane, in herb. P. A. S.), northward. 



Spyridia fllamentosa, Saw. 

 Massachusetts Bay, southward (Dr. Farlow's list). 



ce;k.a.m;ie!.^e. 



Ceramium rubrum, Ag. 



"Very common. 

 Ceramium Deslongchampsii, Ch. 



Frequent. Tlie specimens noted as C. Hooperi, Han., belong to this 



species. 

 Ceramium. diaphanum, Both. 



Occasionally found on the New England coast (Dr. Farlow's list), 



Gloucester (Mrs. A. L. Davis, in herb. P. A. S.), Nahant (Frank S. 



Collins). 

 Ceramium. striatum, Ham. 



Gloucester (Mrs. Bray), etc. Not rare. 

 Ceramium fastigiatum, Harv. 



Massachusetts Bay (Dr. Farlow's list). 



Ptilota plumosa, Ag., var. serrata. 



Frequent from Nahant, northward. 

 Ptilota elegans, Bonnem. 



Common. 



Gloiosiphonia capillaris, Carm. 

 Cape Ann, southward. 



Grifiathsia oorallina(?), Ag. 

 Gloucester (Rev. A. B. Hervey), southward. " G. corallina does 

 not occur in N. A. South of Cape Cod is G. Bornetiana, Farlow. 

 Have you specimens from Essex county? I have never seen any- 

 thing but fragments of a Griffithsia" (memo. Dr. W. G. Farlow). 

 Collectors will confer a favor by communicating specimens of this, 

 or of any species outside of the usual localities, to the writer, for 

 Dr. Farlow. 



Callithamuion tetragonum, Ag. 



Niles beach, Gloucester (Mrs. Bray). More frequent south. 

 Callithamnion Baileyi, Hai-v. 



Lynn beach (Frank S. Collins). More frequent south. 



11 



