Lett — On the Mosses of the Mourne Mountain District. 319 
HEPATICA, Micheli. Lindberg. 
Hepatica conica, L. 
The Black Stairs on Slieve Donard, ToUymore Park, bog between 
Hilltown and Eathfriland, Eosstrevor "Wood : H. W. L. 
N"ot common. 
MAECHANTIA, Linneus. 
Marchantia polymorpba, L. 
ToUymore Park, the Black Stairs on Slieve Donard, Anglesey 
Mountain : H. W. L. Frequent, but not so common or 
abundant as some writers suppose. 
ASTEEELLA, P. Eeauv. 
Asterella liemisphEerica, L. 
Shady wall of Parnell's Bridge in ToUymore Park: H. W. L. 
Very rare. 
EICCIA, MicheH. 
Biccia fluitans, L. 
Plentiful in Meenan Bog near Loughbrickland : H. "W. L. 
Several places in the !N'ewry Canal : S. A. Stewart. 
LICHENS. 
The names of the Lichens recorded in the following notes are 
those used in the Third Edition of Leighton's ''Lichen Elora of 
Great Britain:" Shrewsbury, 1879. 
Eor convenience of reference, I have arranged the few genera and 
species in alphabetical order. 
Alectoria jubata. L. 
Chimney Eock Mountain : H. "W. L. 
Alectoria lanata. L. 
Hen Mountain, Chimney Eock Mountain : H. W. L. 
Cladonia bellidiflora. Schser. 
SHeve Martin : H. W L. 
Cladonia cervicornis. Scheer. 
Slieve Commedah, Slieve Martin, ToUymore Park : H. W. L. 
