316 Proceedings of the Royal Irish Academy. 



Hal. On banks and on stones, in shaded places. Eumham 

 Wood, D. McA., 1894 ; Connor hill, F. W. M. and D. McA., 

 April, 1897; between Emalough and Inch, Lett and McA., 

 1899; Longh Duff, Lett and McA., May, 1899; Lerrymore 

 glen, Lett and McA., 1899. 



Yar. clevexa, Carrington, Brit. Hepat., part 3, p. 56. Shoots 

 compressed, sub-circinate, 1^ by 2 inches high, 2 or 3 times 

 innovant furcate ; leaves secimd, roundish, ciliate-dentate, 

 closely imbricated, erect ; dorsal margia straight, strongly re- 

 curved, ventral projecting backward, so as to form a crest with 

 the opposite leaves ; colesule short, oblong, scarcely exceeding 

 the involucral leaves, and like them densely ciliate at the 

 apex. 



Hal. On rocks. Dingle bay, Dr. Camngton, July, 1861. 



Yar. humilis, Lindenberg, Plagiochila, p. 111. Carrington, 

 Brit. Hepat., part 3, p. 56. Scarcely ^ inch long. Shoots 

 attenuate, leaves ovate, entire, obtuse, or notched. 



Hal. On damp rocks. Derrymore glen, near Cahirconree. 

 Lett and McA., May, 1899. 



2. Flagiochila spinnlosa^ Dicks, Dumort. Jungermania spinulosa, 



Dicks, Crypt-fasc 2, p. 14. Hook. Brit. Jung., t. 14. 



Hal. On moist banks, on rocks, and in wood ; common. 



Yar. inermis, Carrington. Shoots slender, closely tufted, 

 leaves roundish, ovate, obliquely retuse, or bidentate at the 

 apex, margin recurved, mostly entii'e. 



Hal. On rocks and damp banks ; Coumanare lakes, Lett and 

 McA., 1898 ; Bank near Inch, Lett and McA., 1899 ; on rocks 

 in the Brandon valley, Lett and McA., 7th June, 1900. 



Yar. flagellifera, Carrington. Most of the branches flagelli- 

 ferous, intertwined, fastigiate, naked or microphyllous ; leaves 

 not much broader than the stems, obovate cuneate, patent, 

 recurvo-convex, scarcely decuxrent, 2-3 dentate, stipules 

 frequent. 



Hal. On damp rocks and banks ; Lough Duif, Lett and 

 McA., May, 1899; Derrymore glen, Lett and McA.., 1899; 

 rare. 



3. Plagiochila punctata, Taylor, in Lond. Joui\ of Bot., 1844, p. 371. 



Hal. On shady banks among rocks, and in woods ; Connor 

 hill, Lindberg and Moore, 1873; D. McA., 1894; Lett and 

 McA., 1898; Mount Brandon, P. W. M: and D. McA., 1881, 



