15 92 ' Proceedings of the Boy al Irish Academy. 



CHLOROPHYCEAE. 



Pbotococcinae. 

 Chlorochytriurn inclusum Kjellm. — c. In Dilsea edulis. 

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

 *Codiolurn gregarium A. Br. — ('If, Old Head r. On rocks near high-water line. 

 *Petrocelidis Kuck. — CI. Old Head /. In Petrocelis cruenta and Cruoriapellita. 



CONFERYOIDEAE. 

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



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

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

 "Ulvella fucicola Boseuv. — Old Head r. On F. vesiculosus, probably frequent. 

 "Monostroma orbiculatum Thur. — CB /". See note. 



sp. No. 95 (M. crepidinuui Farlow?). — Old Head, Malranny, /. See note. 

 sj). No. 91.— AS, BB, f. See note. 



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

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

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

 Percursaria percursa Boseuv. — c. 

 Enteromorpha clathrata /. Ag. — c . 



paradosa Kiitz. — CB >•, Boundstone (coll. McCalla). See note. 

 torta Beinb.—CB f. 



prolifera J. Ag. — CB r. Attached to stones on flat sandy shores, 

 compressa Grev. — ab. 

 Linza J". Ag. — c. 

 intestinalis, Link. — ab. 



micrococca Kiitz. — CI )•. On rocks near high-water line, 

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

 Ulva Lactuca L. — ab. See note. 

 Ulothris flaeca Thur. — CB /. See note. 

 ;j cousociata Wille. — Boonah /'. See note, 

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

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



:: Phoeophila dench-oides Batt. — BB r. In old Chylocladia kaliformis. 

 Bulboeoleon piliferum Pringsh. — CI ;\ In old Cliovdariaflccgelliformis. 

 Blastophysa rhizopus Rke. — ASr. In old Balfsia sp. 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 f. hee note. 



