McArdle — A Lint of Tri.sh Hepaticce. 417 



Tribe 2. JUNGERMANIE^. 



Sub-tribe 1. RADULEJE. 



Genus IV. Radula Dumort. 



1 . Radula voluta Taylor. 



Radula voluta Taylor, G. L. N., Syn. Hepat., p. 253. Itachda 



xalapensis N. M., Lindberg, Hepat. Hib., 1875. Moore, Irish Hepat., 



p. 616. Radula voluta Tayl., Pearson, Hepat. Brit. Isles, p. 67, 



plate 21. 



Districts I VIII. — X. . 



Hal. — On moist rocks and on the trunks of trees. 

 I. Dunkerron : Taylor. On boulders below Tore "Waterfall 

 (Spruce) : Carrington 1863. Very fine there and plentiful, forming 

 large yellowish patches, Sept. 1897: McA. & Lett 1899. Eocks 

 below the Eagle's Nest, Cromaglown (G. E. Hunt), near Derry- 

 cunighy Cascade and Gortagree (Moore), O'SuUivan's Cascade and 

 Glena, 1873 : Lindberg 1875. Glena (Stewart & Holt) : Pearson 1902. 

 Derrynane and Mangerton, and to 2500 ft. on the Peeks : Scully 1890. 

 Burnham Wood near Ventry, 1894 : McA. Mount Eagle Lake on 

 rocks, rare, Sept. 1897 : Lett and McA. 



VIII. Pontoon near Eoxford, May 1901 : Lett & McA. 

 X. Shores of Lough Cultra, Co, Cavan, 1893 : McA. 1898. 



2. Radula Holtii Spruce. 



Radula Holtii Spruce, in Journ. of Bot., vol. xxv., p. 209, 1887. 

 McArdle & Lett, Hepaticse of Tore Waterfall, Proc. P. I. Acad., 3rd 

 ser., vol. vii., no. 2, 1899, p. 323, plate 9. Pearson, Hepat. Brit. Isles, 

 p. 72, plate 24. 



Districts I. VIII. . 



Hah. — On moist shaded rocks and epiphytic on Bumortiera it'rigua, 

 Jubula Hutchinsice, and Lejeunea Machaii. 



I. Tore Waterfall, Killarney, June 1885 (Holt): Spruce 1887 «. 

 Within the spray of ,same waterfall, associated with the same plants 

 and Radula Carringtonii^ very rare, Sept. 1897 : McA. & Lett. 



VIII. Bengorm north of Ivillery Bay, Sept. 1901 : Lett. 



3. Radula aquilegia Taylor. 



Jungermania aquilegia Tayl., in Trans. Bot. Soc. Edinb., vol. ii., 

 p. 117, 1846. Radula aquilegia Taylor, G. L. N-, Syn. Hepat., p. 260. 

 Jungermania comylanata var. ;««7ior Hook., Brit. Jung., t. 81, fig, 17. 



