McArdle — A Lid of Irish Hepatio(e. 421 



4. Porella rivularis Nees, Lindberg. 



Madotheca rivularis Nees, Nat. Eur. Leb., iii., p. 196. Porella rivu- 

 laris Nees, Lindberg, Muse. Scand., p. 3. Pearson, Hepat. Brit. Isles, 

 p. 87, plate ^1. 



Districts — X. — XII. 



Sah. — On wet rocks and stones and on trees near water. 



X. Castleshane, Co. Monaghan : Waddell. 



XII. On trees by the River Lagan at Drumcro, Co. Down (Waddell) : 

 Stewart 1888. Saintfield, Co. Down (Waddell) : Stewart 1895. 



5. Porella pinnata Dill., Lindberg. 



Jungermania Porella Dicks., Trans. Linn. Soc, vol. iii., p. 230. 

 J%ingermania Cordeana Hiiben., Hepat. Germ., p. 291. Madotheca 

 Porella Nees, Nat. Eur. Leb., p. 201. Porella finnata Dill., Lindb., 

 Hepat. Hib., p. 493. Pearson, Hepat. Brit. Isles, p. 89, plate 32. 



Districts I. — — . 



Hal. — On damp shaded rocks, on stones, and on aquatic mosses. 



I. Near Fermoy, Co. Cork (T. Chandlee) : Moore 1876. South of 

 Ireland (Taylor & Moore) : Pearson 1902. Lough Mangerton (Stewart & 

 Holt): Pearson 1902. Connor Hill, 1873: Lindberg 1875. On wet 

 rocks, Anascaul near Dingle, 1894: McA. Lough Adoon near Clohane 

 on Cinclidotus, Sept. 1897 : Lett & McA. Lough Nalachan on 

 Brandon, rare, Sept. 1899 (Lett & McA.) : McA. 1901. 



Genus 6. Pleurozia Dumortier. 

 1 . Pleurozia cochleariformis Weiss, Dumort. 



Jungermania cochleariformis Weiss, PL Crypt., p. 123. Hook., 

 Brit. Jung., tab. 68. Jungermania purpurea Scop., El. Carm. ii., 

 p. 347. Physiotium cochleariforme Nees, Nat. Eur. Leb., iii., p. 79. 

 Pleuro%ia cochleariformis Dumort., Syll. Jung. Eur., p. 38. Moore, 

 Irish Hepat., p. 620. Pearson, Hepat. Brit. Isles, p. 91, plate 33. 



Districts I. IV. V. YI. — YIII. XL XII. 



Hah. — On damp bogs among heaths, and on the boggy mountain 

 slopes in quantity. 



I. Mountain near Lough Guitane, and Glena: Carrington 1863. 

 Connor Hill, 1873 : Lindberg 1875. Mangerton, 1873 : Lindberg 1875; 

 and the male plant (Stewart & Holt): Pearson 1902. Common in 

 the Dingle Peninsula : McA, 1901. 



IV. Lough Bray, Co. Wicklow,.1887 : McA. 



V. Dublin mountains, frequent: Moore 1876. 



2 Ml 



