408 Proceedings of the Royal Irish Academy. 



Waterfall, Killarney, 1889: Scully 1890. On rocks, Loughanscaul 

 near' Dingle, Sept. 1898: Lett. 



Genus III. Lejeunea Libert. 

 1. Lejeunea Mackaii Hook., Sprengel. 



Jungermania Machaii Hook., Brit. Jung., tab. 53. Pliragmicoma 

 Jf«c^«n Dumort., Comm. Bot., p. 112. Lejeunea Machaii, Sprang., Syst. 

 Veg., iv., p. 233. Moore, Irish Hepat., p. 616. Pearson, Hepat. 

 Brit. Isles, p. 40, plate 7. 



Disti>icts I. IV. Y. YI. — YIII. XII. 



Hah. — Mostly on limestone rocks, often in large shallow patches, 

 and on decayed wood. 



I. Ballylicky near Bantry, 1812 (Miss Hutchins) : Hooker 1816. 

 !N"ear Cork, frequent : Moore 1876. Muckross, Killarney: Carrington 

 1863 ; and (Moore) : Lindberg 1875. Eoss I., 1893 : McA. ; plentiful 

 1899 (Lett & McA.): McA. 1900. Tore Waterfall, Sept. 1899: 

 Lett and McA. Loughanscaul, rare, Sept. 1898 (Lett & McA.) : 

 McA. 1901. 



lY. Dargle, Co. Wicklow, 1812 (Mackay) : Hooker 1816. On 

 rocks in the same station (Scully & McA.) : McA. 1889. 



Y. "Woodlands near Dublin : Moore. Omeath Waterfall, Co. 

 Louth (Waddell) : Lett 1890. 



YI. At Kilmurvy on the Aran Islands, rare : McA. 1895 «. 

 Clonbrock, Co. Galway : McA. 1895 5. 



YIII. On rocks by a small lake near Letterfrack, Co. Galway, 1 874 : 

 Moore. 



XII. On old yew trees, Tollymore Park, Co. Down (AYaddell) : 

 Lett 1890. Gobbins Cliffs, Co. Antrim: Waddell 1893. Limestone 

 rocks, Redhall Glen, 1809 (Templeton); Glenariff (Lett) : Stewart 1895. 



2. Lejeunea serpyllifolia Dicks., Libert. 



Jungermania serpxjllifolia Dicks., PI. Crypt. Brit., fasc. 4. Lejeunea 

 serpyllifolia Libert, in Ann. Gen. Sch. Phys., vi., p. 374. Moore, Irish 

 Hepat., p. 614. Pearson, Hepat. Brit. Isles, p. 45, plate 10. 



Districts I. II. III. lY. Y. YI, YII, YIII. IX. X. XI. XII. 



Bal. — In damp shaded places, on the trunks of trees, on rocks and 

 stones in rivulets, and on damp banks. 



var. planiuscula Lindberg. 

 Hal. — On rocks among Mosses. O'Sullivan's Cascade, Killarney, 

 1873 : Lindberg 1875. In same station : Scully 1890. Connor Hill 

 near Dingle, 1873 : Lindberg 1875. 



