16 92 Proceedings of the Royal Irish Academy. 



CHLOROPHYCEAE. 



PROTOCOCCINAE. 



Chlorochytrium inclusum Kjellm. — c. In Dilsea edulis. 

 [Halosphaera viridis Schm.] . — /'. See note. 

 *Codiolum gregariurn A. Br. — 01/, Old Head r. On rocks near high-water line. 

 *Petrocelidis Kuch. — CI, Old Head/. In Pctrocelis rruenta and Grwriapellita. 



CONFERVOIDEAE. 

 Prasiola stipitata Suhr. — CI, CB, The Bills, I. On bird cliffs ab, on bare rocks/. 



crispa var. marina Borg. (= Gayella). — CI I, Caher I., The Bills. 

 Protoderma marinum Bkc. — CB, AS, BB, /'. On pebbles, near low-water mark. 

 : Ulvella fucicola Rosenr. — Old Head r. On F. vesiculosus, probably frequent. 

 *Monostroma orbiculatum Thitr. — CB /'. See note. 



sp. No. 95 (M. crepidinum Farlow '?).— Old Head, Mulranny, /. See note. 

 sp. No. 91.— AS, BB, /'. See note. 



Grevillei Wittr. — CI, AS, c. Epiphytic near low-water mark. 

 var. Cornucopiae Bait. — CI, AS, r. On Corallina. 

 *Capsosiphon aureolus Gobi. — Old Head, Mulranny, I. 



Percursaria percursa Rosenv c. 



Enteromorpha clathrata J. Ag. — c. 



paradoxa Kiitz. — CB r, Roundstone (coll. McCalla). See note. 



* torta Reinb.—CB f. 



prolifera /. -4.gr. — CB r. Attached to stones on flat sandy shores. 



compressa Grev. — ab. 



Linza J. Ag.—c. 



intestinalis, Link. — ab. 



micrococca Kiitz. — CI r. On rocks near high-water line. 



* minima Nag.- — CI c. On rocks near high-water line. 

 Ulva Lactuca L. — ab. See note. 



Ulothrix flacca Thur. — CB /. See note. 



* consociata Wille. — Boonah /'. See note. 



t pseudoflacca Wille. — CI, Old Head, Boonah, f. See note. 

 t subflaccida Wille. — CB, AS, r. See note. 



'Phoeophila dendroides Batt. — BB r. In old Chylocladia kaliformis. 

 Bulbocoleon piliferum Pringsh. — CI r. In old Chordariaflagelliformis. 

 Blastopliysa rhizopus Bke. — ASr. In old Balfsia s^;. on Achill Bridge. 

 Endoderma viride Lagerh. — CI, CB,/. In Nitophyllum and Delesseria spp. 

 Wittrockii Wille. — /. In Pylaiella litoralis. 

 Flustrae Batt. — r. In Flustra sp. 

 Tellamia contorta Batt. — CI, Boonah, /. In Littorina. 



intricata Batt. — Boonah r. In Littorina. 

 Urospora mirabilis Aresch. — CI/. See note. 



