46 



Proceedings of the Royal Irish Academy. 



Pringsheimia 



scutata Bke. L U. 

 Ehizoclonium 



arenosum Ki'itz. M. 



implexum i?rt«. MU. 



Kocbianum Kiltz. C. 



riparium Harv. M L. 

 Sykidion 



Dyeri Wright. L. 

 Tellamia 



contorta Batt. L C. 



intricata Batt. C. 

 Ulothrix 



flacca Thur. L. 



speciosa Kiltz. U. 

 Ulva 



lactuca Linn. M L U. 

 Ulvella 



conflueus Rosenv. L. 



IV. — Maeine Chlokophyce^i: — continued. 



Urospora 



bangioides Holm, rf Batt. M U. 



isogona Batt. M L U. 

 Vaucberia 



ntorea Bang. <£• Ag. U. 



spb^erospora Nordst. L U. 



Tburetii Woro7i. MLU. 



Doubtful Species. 



Codium 



Bursa Ag. U.* 

 Conferva 



aeruginosa Htids. C U. 



brecca. U. 



ulotbrix Lijngb. M. 

 Urospora 



speciosa. U. 



v.— Phaeophyceae. 



Acbinetospora 



pusilla Born. M L. 

 Alaria 



esculenta Grev. M L U. 

 Artbrocladia 



villosa Buhy. M L U. 

 Ascocyclus 



orbicularis il/rt^n. MLC. 

 Ascopbyllum 



Mackaii Holm d- Batt. C. 



nodosum Le Jol. M L CU. 

 Asperococcus 



bullosus Lainour. M L C U. 



compressus Grif. M U. 



fistulosus iTooA-e?-. MLCU. 



[* Recorded from "near Belfast" by Templeton, 

 species, but also extends as far north as the English 



Bifurcaria 





tuberculata Stachh. M C U. 



Carpomitra 





costata Batt. 



M. 



! Castagnea ■ 





virescens Tht(9 



. MLCU. 



Zoster^e Thar. 



MC. 



Cbaetopteris 





plumosa Kiitz. 



LU. 



Cbiliouema 





Natbabfe Sam 



. U. 



Cborda 





fibim Stackh. 



MLCU. 



tomeutosa Lijngh. C U. 



but never found since. It is a Mediterranean 

 Channel.] 



