Lett — On the Mosses of the Mourne Mountain District. 323 
Lecidea lithophila, Ach. 
Slieve Donard, Slieve Meel Beg, Slievenabrock, Eosstrevor 
Mountain, Anglesey Mountain, on pebbles among the 
Sandhills at l^ewcastle : H. "W. L. 
Lecidea milliaria, Pr, 
Hen Mountain : H. W. L. 
Lecidea oederi, Web. 
Slieve Donard, Slievenamaddy : H. W. L. 
Lecidea petraea, Wulf . 
Slieve Commedah, Eosstrevor Mountain : H. "W L. 
Lecidea plana, Lahm. 
Wall in the " Castle " bog : H. W. L. 
Lecidea platycarpa, f . hydrophila, Fr. 
Thomas Mountain on Slieve Donard : H. W. L. 
Lecidea polycarpa, Plk. 
ToUymore Park, Shanslieve : H. W. L. 
Lecidea premnea, f . saxicola, Leight. 
Slievenabrock : H. "W. L. 
Lecidea rivulosa, Ach. 
Walls of " Miner's House," on summit of Slieve Donard, Slieve- 
namaddy, Shanslieve, Chimney Eock Mountain : H. W. L. 
Lecidea squamulosa, Deak. 
On large pebbles lying among the Sandhills at iN'ewcastle : H.W.L. 
Lecidea umbrina, Ach. 
Maritime rocks near Analong : H. W. L. 
Lichina pygmsea, Leight. 
Maritime rocks, at Maggie's Leap near ITewcastle : H. W. L. 
Opegrapha atra, Pers. 
Eosstrevor Wood : H. W. L. 
Opegrapha vulgata, f. stenocarpa, Ach. 
I^ear IS'ewcastle : H. W. L. 
Parmelia fuliginosa, f . olivacea, Leight. 
On Scotch firs, the Ballagh Park on Slieve Donard : H. W. L. 
