420 Proceedings of the Royal Irish Academy. 



2. Porella platyphylla Linn., Lindberg. 



Jungermania platyphyllaJJmxL., Sp. PL, ed. 1, p. 1134. Hook., 

 Brit. Jung., tab. 40. Madotheca platyphylla Dumort., Comm., p. 111. 

 Porella platyphylla Lindberg, Muse. Scand., p. 3, 1879. Moore, Irish 

 Hepat., p. 618. Pearson, Hepat. Brit. Isles, p. 84, plate 30. 



Districts I. lY. V. VI. — IX. X. — XII. 



Hah. — On rocks and stones, on the trunks of trees, and on moss- 

 covered banks. 



I. Killarney, frequent: Carrington 1863. Tore "Waterfall, 1897: 

 McA. & Lett 1899. Brandon, 1881 : F. W. M. & McA. Mount 

 Eagle Lake, 1898: Lett & McA. Anascaul, 1894, and other places 

 in the Dingle Peninsula: McA. 1901. 



IV. On rocks and trees, Co. Wicklow: Moore 1876. On stones 

 at the summit of Dermott McMurrough's Castle, near Perns, Co. 

 Wexford, 1897 : Canon Gibson & McA. 



V. On rocks, Beauparc, Co. Meath, Sept. 1893 : McA. 



VI. Common in South Clare: Stewart 1890. Kilronan, Aran 

 Islands : McA. 1895 a. 



IX. Ben Bulben, Co. Sligo : McA. 1880. Lough Allen, Co. 

 Leitrim, frequent: Stewart 1885. 



X. Killakeen Woods near Cavan, 1893 : McA. 1898. 



XII. On dry exposed rocks, Co. Antrim, 1834 : Moore. On a 

 bank at the railway embankment north of Dromore, Co. Down : 

 Lett 1890. 



3, Porella Thuja Dicks., Moore. 



Jung er mania Thuja Dicks., PI. Crypt. Brit., fasc. 4, p. 19. Mado- 

 theca Thuja Dumort., Comm., p. 111. Moore, Irish Hepat., p. 618, 

 Pearson, Hepat. Brit. Isles, p. 82, plate 29. 



Districts I. IV. XII. 



Hah. — On rocks and stones ; on the trunks of trees. 



I. JSTear Lough Mangerton, 1885 (Holt & Stewart) : Pearson 1902. 

 Lough Eennehy, Dunkerron (Taylor) : Moore 1876. Brandon, 1864 : 

 Moore; and 1899 : Lett & McA. Anascaul, May 1894 : McA. Mount 

 Eagle Lake near Dingle, 1898 : Lett & McA. Side of Gougane-Barra 

 Lake near Bantry (Miss Hutchins) : Hooker 1816. 



IV. Lough Bray, Co. Wicklow : Moore; and McA. 1890. 



XII. On moist rocks by the side of a waterfall near Cai-rickf ergus, 

 Co. Antrim (Templeton) : Hooker 1816. Woodburn and Colin Glens, 

 Co. Antrim : Waddell in Brit. Assoc. Guide to Belfast, 1902. 



