THE MARINE ALG.E OF NEW ENGLAND. 113 



occurs at Charleston but is not known farther north, is also to ho inclmhMl in the 

 present ^enns, then the ilelinition jjiven above will have to be inodilit'd so as to iiuliulo 

 l»lants having more than one row of cells, an extension of the irenus api.an ntly 

 adopted by Thuret, but not originally mlopted by Areschoug. 



E. CERA:micolA, (Lyii^^b.) Aresdi. (Bam/ia ccramivola, C liaiivin; 

 Plm*. l>iit., VI, 317. — E. ccramicohi, Le Julis, Listo »l»'s Al-iics Alariiies 

 de Cherbourg, PL 3, Figs. 1, 2.) 



Filaments ditfiise, forming a web or fringe on alga?, cells about as long 

 as broad. 



On algiP, especially the smaller Floridea, in tide-pools. Late summer 

 and autumn. 



Gloucester, Mass., Mrs. Davis, Mrs. Cochrane; Peak's Island, Maine, 

 U; G. F.; Europe. 



In examininfj with the microscope the lilameutous Floridtiv one often meets with a 

 few filaments of this species. It is not, however, common to tind it in such abundance 

 on the short^ as to attract the eye of the collector who is not especially in search of it. 

 It attains its full size in the month of September. 



tGOXIOTRICnUM, Kiitz. 



(From yuvia, an angle, and rpixiov, a small hair.) 



Fronds filamentous, branching, composed of rose-colored, disk-shaped 

 cells, embedded in jelly. 



A genus composed of only two or three species. Kiitzing describes two species, but 

 his limitation of them is not now kept by algologists. Zanardini describes and figures 

 a G. c(erul€scens, which is not red in any sense. The systematic position of the genus 

 is very doubtful, and were it not for the color of the cells, G. elegans would probably 

 be placed in the Xostochinece. The only reproduction known consists in the escape of 

 the cells from the gelatinous sheath and a division into two new cells, then into four, 

 and so on until a new filament is formed. 



G. ELEGANS, Zanard. (Bangia elegans, Chauv.; Phye. Brit., PL 24G.) 

 Filaments about .02""" in diameter; cells cuboidal or ovate, about 

 .000-10™'" in diameter. 

 On Dasya elegans. 

 Cotuit Port, Mass., Mrs. J. T. Lusl- ; Europe. 



A small and rare jdaut, growing in tufts scarcely a tenth of an inch high. Wc have 

 only one American specimen, collected by Mrs. Lusk, of Gloucester. The locality waa 

 incorrectly given in the List of the Marine A1(j<r of the United States, Proc. Am. 

 Acad., 1^75, the specimen not having been found by Mrs. Lusk at Gloucester, but at 

 Cotuit, Mass. 



Suborder SQUAMARIE^E. 



Fronds forming horizon tiUly expanded crusts, usually membrana- 

 ceous, occasionally somewhat incrusted with lime, composed of closely 

 l>acked vertical lilaments arising from a horizontal stratum of cellsj 

 fnictilicatiou either in external protuberances composed of parallel fila- 



