Clare Island Survey — Marine Algae. 16 97 



Fucus serratus L.— ab. 



var. angustifrons Stackh. — CI/. 

 Ascophyllum nodosum LeJol. — CI r ; CB, AS,«6. 



var. Mackaii (Turner) comb. nov. — Roundstone Bay/. See note. 

 Pelvetia canaliculata Decne et Thur. — ab. 



Bifurcaria tuberculata Stackh. — Dog's Bay. Roundstone. Rock-pools. 

 Himanthalia lorea Lyngb. — CI ab. 

 Halidrys siliquosa Lyngb. — CB. BB, c. 

 Cystoseira ericoides Ag. — CI c. 



granulata Ag. — CBc. In pools, and in shallow water. 



[discors Ag.] — Roundstone (teste Johnson, 1899). 



fibrosa Ag. — CI r. In rock-pools. 



TlLOPTERIDEAE. 



[Tilopteris Mertensii Kiitz.] — Roundstone (coll. McCalla). 



DlCTYOTACEAE. 

 Dicytota dichotoma Lamx. — ab. 



var. implexa J. Ag. — CI c. 

 Taonia atomaria J. Ag. — CB r. See note. 

 Dictyopteris membranacea Bath — CB r. See note. 



FLORIDEAE. 



POBPHYREAE. 



Conchocelis rosea Bath — CB/. In shells. 



Goniotrichum elegans Le Jol. — Off Annagh Island ;•. On Ghampia parvuta. 



Erythrotrichia carnea Le Jol.—f. 



Bertholdii Batt.— Achill f. See note. 



* investiens Born.— See note. 



Boryana Berth.— CI r. On Laurencia pinnatifida. 



* Welwitsehii Batt. — CI r. See note. 

 Bangia fuscopurpurea Lyngb.-A-c. 



*Porphyra coccinea J. Ag. — CI r. See note, 

 leucosticta Thur. — CI/. On Fucus spp. 

 umbilicalis Kiitz. — ab. See note. 

 var. laciniata I.Ag.—c. 

 var. linearis Tlun\ — c, 

 Xemaliomnae. 

 *Colaconema Bonneniaisoniae Batt. — AS ;■. In Bonnemaisonia asparagoides. 

 Chantransia virgatula Thur. — See notes. 



* var. luxurians Bosenv. — CI c, CB r. 



* var. tetrica Bosenv. — CI, CB, r. 

 var. secundata Bosenv. — ab. 



t Thuretii Kylin.— CB, AS, c. See note. 



R.I. A. PROC. VOL. XXXI. N 15 



