200 Proceedings of the Royal Irish Academy. 



V. — Ehodophyceae — continiied. 

 Chondrus 



mammillosus Grev. = Gigartina stellata Batt. 



membranifolius Grev. = Phyllopliora membranifolia /. Ag. 



norvegicus Lamowr. = Gymnogongrus norvegicus J. Ag. 

 Chrysymenia 



clavellosa Harv. = Lomentaria clavellosa Gaill. 

 Chylocladia 



articulata Grev. = Lomentaria articulata Lyngb. 



clavellosa Hook. = Lomentaria clavellosa Gaill. 



ovalis Hook. = C. ovata Bait. 



parvula Hook. = Champia parvula Harv. 

 Conferva 



ciliata Ellis = Ceramium ciliatum Diicluz. 



coccinea Htids. = Heterosiplionia plumosa Batt. 



Daviesii Dillw. = Chantransia Daviesii Thur. 



diapkana Light/. = Ceramium diapbanum Roth. 



elongata //7«fs. = Polysiphonia elongata Grev. 



fibrillosa DiUw. = Polysiphonia fibrillosa Grev. 



floridula Dilhc. = Rhodochorton floridulum Ntig. 



interrupta Dillw. = Seirospora interrupta Schm. 



lanuginosa Dillw. = Callithamnion lanuginosum Lyngb. 



multifida Dilltr. = Spliondylothamnion multlfidum NSg. 



nodulosa Light/. = Ceramium rubrum Ag, 



parasitica Huds. = Pterosiphonia parasitica Falkenb. 



patens Dillw. - Polysiphonia urceolata Grev. 



pluma Dillw. = Ptilothamnion pluma Thur. 



plumosa Ellis = Heterosiphonia plumosa Batt. 



polymorpba Fl. Dan. = Polysiphonia fastigiata Grev. 



purpurasc€ns Huds. = Callithamnion Brodiaei Harv. 



Rotbii Dillw. = Khodochorton Eothii NUg. 



rubra Huds. = Ceramium rubrum Ag. 



setacea Buds. = Griifithsia flosculosa Batt. 



stricta Dillw. = Polysiphonia urceolata Grev. 

 tenella Dillw. - Spermotbamnion Turneri Aresch. 

 tetrica Dillw, - Callithamnion tetricum Ag. 

 Coralliua 



mediterranea Aresch. = C. elongata Johnst. 

 Cystocloniam 



purpurascens Kiitz. = C. purpureum Batt. 

 Dasya 



coccinea Huds. = Heterosiphonia plumosa Batt, 



