M'Ardle — On the Musci and Sepaticce of the Co. Cavan. 613 



limestone rocks. Bally taise wood, plentiful (fertile). This is, so far, 

 the only known Irish locality for the plant which is an addition to 

 the list of Liverworts. It is also found in England and Wales, and 

 on the Continent, Sweden, Switzerland, Germany, Austria, and,^ 

 possibly it may lurk in Irish Herbaria, under the name of S. nemo- 

 rosa, and, more probably, of S. aquiloba. Mr. ~W. H. Pearson, in his 

 excellent article on the plant, in Journal of Botany, above quoted, 

 writes: — "Although strikingly different in habit hom. S. cequihha 

 (Schwsegr). I am not prepared to say, with the founder of the 

 species, that it has nothing in common with it ; the perianth has 

 usually a wider mouth, but the margin is exactly the same ; and, 

 although the antical lobe is proportionately smaller and more rotun- 

 date at the apex, yet, in S. cBquiloba, the lobes are not nearly so equal 

 as the name would imply; the most remarkable characters of dis- 

 tinction are found in the antical lobes, which, in S. aspera, are more 

 or less rotundate at the apex, which character becomes more notice- 

 able in the bracts ; whereas, in S. cequiloha they are more oblong and 

 sub-quadrate, the apex is more acute and becomes more accentuated in 

 the antical lobe of the bract ; the postical lobes are also more oblong,^ 

 and acuminate ; the postical lobes of both the leaves and bracts are 

 strongly recurved. S. (zquiloba is a smaller plant, with a neater 

 habit, generally of a dark olive-green colour, leaves regularly 

 inserted, and almost equal in size along the whole stem, margin not 

 so ciliate ; teeth smaller and fewer, sometimes subentire, texture more- 

 opaque." 



18. Scapania curta, Dumort. Jungermania nemorosa, var. S denudata. 



Hook. Brit. Jung., t. 21 ; Carrington, British Hepaticse, 

 pt. 4, p. 86, pi. 7, fig. 23. On damp ground, between rocks, 

 Slieve Glah, rare (very scarce). 



19. Diplopliyllum alhicans, Linn. (Dumort), Hook. Brit. Jung., tab. 



23 ; Eng. Bot. 2240. Damp banks, Ballyhaise wood, Slieve 

 Glah. 



20. PlagiocMla asplenioides, Linn. (Dumort), Eng. Bot., t. 1061 ; Hook., 



Brit., Jung., tab. 13. On damp ground, plentiful, very fine in 

 the oak wood, Ballyhaise and Killakeen. 



21. Plagiochila spinulosa, Dicks (Dumort), Hook. Brit. Jung., t. 14. 



Damp bank, Ballyhaise wood. 



22. Jungermania {Apolo%ia) pumila, Withering (Dumort), Hook. 



Brit. Jung. t. 17 ; Carrington and Pearson, Exs. No. 102. 

 On wet rocks, Ballyhaise wood, very scarce. 



