The Naturalist. 



Cladostephus verticillatus, Ag. S 

 Ectocarpus siliciilosiis, Lyng, S & B 

 E. tomentosus, Lyng. S 

 E. littoralis, Lyng. S and B 

 Sphacelaria radicans, Harv. S 

 Polj'siphonia urceolata^ Grev. S 



and B 

 P. iibrata, Harv. S 

 P. nigrescens, Grev. S 

 P. atrorubescens, Grev. S 

 P. fastigiata, Grev. S 

 P. formosaj Suhr. S 

 Dasya coccinea, Ag. S 

 Laurencia pinnatifida, Lam. S 

 Lomentaria ovalis, Endl. S 

 Corallina officinalis^ L. S 

 Melobesia verrucata, Lam. S. 

 M. pustulata, Lam. S 

 Delesseria sinuosa, Lam. S and B 

 D. alata, Lam. S and B 

 T>. angustissima, GrifF. S 

 D. hypoglossum, Ag, S 

 Calliphebaris ciliata, Ktg. S and B 

 C. jubata, Ktg. S 

 Wormskioldia sanguinea, Spr. S 



and B 



Plocamium coccineum, Lyng. S 

 and B 



Gymnogongrns Norvegicus, J.^ Ag. 

 S 



Cystoclonium piirpurascens, Ktg. 



S and B 

 Callophyllis laciniata, Ktg. S 

 Chondrus crispus, Lyng. S 

 Chylocladia articulata, Grev. S 

 Furcellaria fastigiata, Lyng. S 



and B 



Schizymenia edulis, Stackhouse. 

 S and B 



Oeramium rubrnm, Ag. S 



C. botryocarpnm, Phyc. Brit. S 



C. DesJongchampsii, Chauv. S 



C. diaphanum, Roth. S 



C. nodosum, Phyc. Brit. S 



C. fastigiatum, Harv. S and B 



C. echionotum, J., Ag. S 



C. acanthonotum, CarmichaeL S 



and B 

 C. ciliatum, Dncluz. S 

 Ptilota plumosa, Ag. S and B 

 P. elegans, Bonnemaison. S 

 Griffithsia setacea, Ag. S and B 

 Callithamnion pluma, Ag. S 

 C. roseum, Lyng. S 

 C. byssoideum, Arnott. S 

 C. Pothii, Lyng. S 

 Porphyra vulgaris, Ag. S 

 Bangia fusco-purpurea, Lyng. S 

 Enteromorpha intestinalis, Link. S 

 E. compressa, Grev. S 

 Ulva lactuca, L. S 

 U. latissima, L, S 

 U. linza, L. S 

 Cladophora rupestris, Ktg. S 

 C. Isetevirens, Ktg. S 

 C. lanosa, Ktg. S 

 C. fracta, Ktg. S 

 C. uncialis, Harv. S - 

 Conferva terea, Ktg. S 

 Rivularia atra, Poth. S 

 Oscillatoria spiralis, Carm. B 

 Licmophora argentescens, Ag. , var. 



flabellata, Ag. S 

 Schizonema Dillwynii, Ag. S 

 Grammatophora marina, Ktg. S 

 Podosphenia tenella, Ktg. S 

 Phabdonema arcuatum, Ktg. S 



FRESH-WATER ALG^. 

 Chaetophora endivaefolia, Ag. Scarborough, G. E. M., new record. 

 Hydrodictyon utriculatum, Roth. Mere, Scarborough, do. 

 Spirogyra nitida (Dilhv.) Link. do G. E. M. 



S. (piinina (Ag.) Ktg. do do 



