Clare Island Survey — Marine Algae. 15 95 



Ectocarpus [Landsburgii Harv.] . — Roundstone (coll. Harvey). 



granulosus Ag. — /. 

 [Sorocarpus uvaeformis Pringsh.~\—f. Roundstone (teste Johnson, 1899). 

 Pylaiella litoralis Kjellm. — ab. 



Isthmoplea sphaerophora Kjellm. — CI/. On Plumaria elegans. 

 Myriofcriehia clavaeformis Harv. — c. 

 filiformis Harv. — c. 



* densa Batt.— CB r. On Zostera. 



repens Hauck. — Old Head r. On Eudesme. 

 fDichosporangium Chordariae Wollny. — CI r. See note. 

 Myriactis pulvinata Kiitz. — CI c. On Cystoseira ericoides and C. granulata. 

 Areschougii Batt. — CI r. On Himanthalia. 

 stellata Batt. — CI/. On Dictyola in pools. 



* Haydeni Batt. — CI r. On Scytosiphon in pools. 

 Elachista fucicola Fries. — ab. 



naccida Aresch. — CI, Old Head, c. On Cystoseira granulata and Halidrv 



scutulata Duby. — CI c. On Himanthalia. 

 "Leptonema fasciculatum Bke.—CB r. On Zostera. 

 Giraudia sphacelarioides Derh. db Sol. — CB r. On Zostera, 

 Sphacelaria cirrhosa Ag. — c. See note. 



britannica Sauv. — r. See note. 



* plumula Zan. — CB, Roundstone. 

 Cladostephus spongiosus Ag. — c. 



verticillatus Ag. — ■/. 

 Halopteris filicina Kiitz. — CB r. 

 Stypocaulon scoparium Kiitz. — r. 

 Myrionema strangulans Grev. — c. 



Corunnae Sauv. — CI r. 



papillosum Sa uv.—f. 



* aecidioides Sauv. — CI r. 



* saxicola Kuck. — CI r. See note, 

 reptans Fosl. — Old Head r. See note. 



Ulonema rhizophorum Fosl. — CIc. See note. 

 Hecatonema maculans Sauv. — CI/. 



* reptans Kylin.— CI, CB,/. See note, 

 speciosum comb. nov. — CI/. See note. 



::; Microspongium globosum Reinke.—Clf. See note. 

 ;: Chilionema Nathaliae Sauv. — CI r. 



* ocellatum Sauv. — CI /•. 



Ascocyclus orbicularis Magn.— CB c. On Zostera. 



* foecundus comb, nov.— CI, Old Head,/. See note. 

 + Saccharinae sp.nov.— CIr. See note. 



