1907. M'Ardle. — Mosses of Lambay. 103 



interesting moss, which in many ways resembles H. wubratum, but I 

 always returned to where I started with H. sphndens. I therefore 

 sent a specimen to H. N. Dixon, F.L.S., of Northampton, who says 

 it has a slight approach to the var. gracilis. It is plentiful on the hill 

 above the castle facing east. I have not seen this interesting form 

 previously in Ireland. 



H. squarrosum, B. & S.— Very common, infesting pasture. 



H. triquetrum, B. &S.— In rocky pastures and about the roots of trees, 

 generally distributed. 



HEPATIC^. 



BY DAVID M'ARDLE. 



The absence from Lambay of many species of Hepatics may 

 be accounted for when we consider the exposed situation and 

 the absence of woods and shaded glens where they love to 

 grow. Nevertheless, I was disappointed as regards the variety 

 of Scale-mosses, and I caofiot do better than copy from my 

 note-book a few notes made on a beautiful June evening. 

 "Collected in part of the plantation near the castle. Followed 

 a little stream, and was struck by the absence of Liverworts. 

 Conoccphalus conicus appeared against a ditch-bank as an old 

 friend ; Pellia epiphylla very scarce. The hill stream led me to 

 the sea, where I hoped to find on its terminating banks some 

 species of Fossombronia, but no such luck. At present time 

 I am much interested in the genus Aneura, but I did not find 

 even a form of the common A. multifield. I searched along 

 the ditch banks for Jungermania crenulata without success. 

 Such a remarkable difference between this island and the 

 Howth peninsula, nine miles away, is very striking." 



In the following list I enumerate 20 species, but out of this 

 short list two, I am glad to say, are additions to the well- 

 worked flora of Co. Dublin. These are marked * below. 



In my last 1 paper on Howth Liverworts I enumerated 55 

 species from that in many respects similar area. 



1 Additions to the Hepaticae of the Hill of Howth, with a table showing 

 their geographical distribution.— Proc. RJ.A., 3rd Ser., vol. iv., no. I,, 

 1897. 



