Clare Island' Survey — Marine Algae. 15 97 



Fucus serratus L.— ab. 



var. angustifrons Stackh. — CI/. 

 Ascophyllum nodosum Le Jol. — CI?'; CB, AS,«i. 



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

 Pelvetia canaliculata Decne ct Thur. — ab. 



Bifurearia tuberculata Stackh. — Dog's Bay, Eoundstone. Rock-pools. 

 Himantbalia lorea Lyngb. — CI ab. 

 Halidrys siliquosa Lyngb. — CB, BB, c. 

 Cystoseira ericoides Ag. — CI c. 



granulata Ag. -CBc Iu pools, and in shallow water. 



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



fibrosa Ag.— CI r. In rock-pools. 



TlLOPTEKIDEAE. 



[Tilopteris Mertensii Kiitz.] — Eoundstone (coll. McCalla), 



DlCTYOTACEAE. 



Dicytota dichotoma Lamx. — ab. 



var. implexa J. Ag. — CI c. 

 Taonia atomaria J. Ag. — CB ;-. See note. 

 Dictyopteris membranacea Batt. — CB ;-. See note. 



FLORIDEAE. 



PORPHYREAE. 

 Conchocelis rosea Batt. — CB /. In shells. 



G-oniotrichum elegans Le Jol.— Off Annagh Island r. On Ghampia varvula, 

 Erythrotrichia carnea Le Jol. — ■/. 



Bertholdii Batt.— Achill /. See note. 



* investiens Born.— See note. 



Boryana Berth. — CI r. On Laurencia ■ pinna tifirla. 



* Welwitschii Batt. — CI r. See note. 

 Bangia fuscopurpurea Lyngb. — -c. 



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

 leucosticta Thur. — CI/. On Fucus spp. 

 umbilicalis Kiitz. — ab. See note. 

 var. laciniata J.Ag.—c. 

 var. linearis Thur. — c. 

 Nemalioninae. 

 *Colaconeraa Bonnernaisoniae Batt. — AS r. 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. 



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



R.I. A. PKOC, VOL. XXXI. N 15 



