292 Proceedings of the Royal Irish Academy. 



dimensions. From here we collected round Lough Doon, or the 

 Pedlar's lake, and we gathered Lejeuna calyptrifolia from, rocks by the 

 roadside ; then on to Lough Adoon, where, among others, we found 

 the rare PoreUa jpimiata, and worked on to the lakes and hills near 

 Castlegregory, across to the village of Clohane, and up the slopes of 

 Mount Brandon to Lough Iv'alachan, where some good collecting was 

 done. We crossed the Owenmore river in the Erandon valley, and on 

 to Lough DuB, "the Black Lough." On the shelving rocks at the 

 mountain side of the lough we gathered Lepidozia Pearsoni for the 

 fii'st time in Lreland, this being the only known locality for it. From 

 the valley we crossed the mountaia at Glins, and worked round to 

 Brandon head, fi'om thence on to Mount Eagle, and collected round 

 the lake, which is the most westerly in. Europe. Here we gathered 

 many rare Lejeunec& and Lepido%m tumidida. 



Iq June, last year, we again visited the peninsula, our principal 

 object being to endeavour to rediscover ^capania ornithopodioides, which 

 is better known by Hooker's name, p)lanifolia, and also Scapania nim- 

 bosa, a few stems of which were found by Dr. Taylor, also neax the 

 summit of Mount Brandon, in 1813. Though labouring against the 

 difficulties of wet and inclement weather, we were fortunate in find- 

 ing the former in some quantity. 



Erom the foregoing notes it will be obvious that we have spared no 

 amount of time or fatigue to give as complete a list as possible of 

 the Hepaticte to be found in the Dingle peninsula. 



In the following list I enumerate 129 species. In all Ireland 

 about 168 species are known to be found, so that around the sheltered 

 lakes and glens of the peninsula we find only 39 species less than the 

 total known in Ireland so far. 



To previous knowledge of the Hepaticse of the district I have 

 added 43 species, and 24 varieties. Two of the species, Lepidozia 

 Pearsoni and Cephalo%ia leucantha, are new to the Irish Elora, as are 

 also some of the varieties. 



In cases of doubt I have consulted M. B. Slater, Esq., of Malton, 

 Yorkshire, and "W. H. Pearson, Esq., of Knutsford, Cheshire, the two 

 highest authorities on the subject in Britain at the present day, and 

 to whom I offer my best thanks. Also to W. :N'. Allen, Esq., of 

 Ca^meagh, IS'orth Circulai'-road, Dublin, for the beautiful drawings of 

 Lepidozia Pearsoni Scapania nimlosa and S. ornithopodioides. 



