612 Proceedings of the Royal Irish Academy. 



12. CephaJo%ia catenulata, Huten, Hepat. Germ. 169. Jungermanio: 



catenulata, Carrington, in Trans. Bot. Soc. Edin. 7, p. 449, 

 t. 11, fig. 2, vera. On decayed wood, shores of Lough. Cultra, 

 Slieve Glah, Ballyhaise, amongst Diplophyllum. 



13. Lophocolea bidentata, Linn. (Dumort), Hook. Brit. Jung., tab. 30. 



On decayed ■wood shores of Lough Cultra, Slieve Glah, oak 

 wood, at Ballyhaise. 



14. Lophocolea heteropJiylh, Schrad, Hook. Brit. Jung., t. 31. Car- 



rington and Pearson Exsicc, 'So 36. Paraecious. The Anthe- 

 ridea may he found in the axils of the perigonial leaves, just 

 beneath the perianth ; by this character and the various shaped 

 leaves, it is abundantly distinct fromZ. hidentata andZ. cuspi- 

 data, -which both have their male flowers in amentge. On 

 decayed •wood, shores of Lough Cultra, fertile. 



15. Saccogyna viticulosa, Dumort, Hook. Brit. Jung., t. 60. On 



damp ground, Ballyhaise woods. 



16. Scapania nemorosa, Dnmoit, Eng. Bot., t. 607. Carrington and 



Pearson, Exsicc. 92. On damp ground, Ballyhaise woods. 



17. Scapania aspera, Muller & Bemet (Plate XXI.) ; Henri Bemet^ 



Catalogue Hep. du Sud-Ouest de la Suisse et de la Haute- 

 Savoie, 1888. Pearson, in Journal of Botany vol. 30, p. 353, 

 plate 329, 1893. 



Dioecious, loosely depresso-csespitose, of a reddish or olive brown 

 colour. Stems tallish, simple or slightly branched, firm, blackil;h, 

 recurved at the apex, denudate at the base, radiculose, rootlets few, 

 whitish. Leaves transversely inserted, somewhat smaller and distant 

 below, contiguous, or imbricate above, subsecund, unequally bilobed, 

 margin ciliate-dentate ; postical lobe more distinctly ciliate, about 

 twenty-five cilia around the margin ; antical lobe, with five to ten or 

 more, distant teeth, about half the size of the postical, convex, oval- 

 triangular, rotundate, or rarely abruptly subacute, appressed to the 

 stem, postical lobe, oval-oblong, rotundate, or rarely abruptly 

 subacute, reflexed ; texture somewhat firm, epidermis verruculose, 

 several minute papillae on each cell ; cells small, to rather minute, 

 subquadrate, walls thick, angles thickened, no trigones. Bracts 

 rather larger than the upper leaves, lobes more equal, antical 

 lobe rotundate. Perianth projecting half beyond the bracts, 

 obovate, compressed mouth, wide truncate, spinose ciliate. Male 

 stems more slender, perigonial bracts enclosing leafy paraphyses 

 along with the antheridia. Sometimes gemmiparous. Hab. On 



