Lett — On the Mosses of the Motirne Mountain District. 289 
Grimmia aquatica, C. Muell. 
(Eacomitriuin protensum, A. Braun.) 
On schist on Thomas Mountain, the Black Stairs on SlieYe Don- 
ard, Slievenamaddy, Slieve Meel Beg, rocks in the E-iver 
Shimna in Tollymore Park : H. W. L. Eosstrevor "Wood, 
Knockbarragh Hill, and near Hilltown: Eev. C. H. "Waddell. 
This moss is rare in the district. Mr, T. Drummond found 
it in the Mourne Mountains." 
Grimmia microcarpa, Gmel. 
(Racomitrium sudeticum, Funck.) 
Slieve Commedah, top of Shanlieve, Spelga, Slieve Gullion, 
Thomas Mountain, and the Black Stairs on Slieve Donard : 
H. L. This moss is rare throughout the range. 
Grimmia heterosticha, C. Muell. 
(Eacomitrium heterostichum, Hedw.) 
Slievenabrock, Slieve Donard (at the Black Stairs and on the 
Great Cairn), Tievedocharragh, Knockbarragh, Tollymore 
Park, Eosstrevor Wood, Anglesey Mountain, Golden Eiver 
on Carlingford Mountain, Camlough Mountain : H. W. L. 
Common all over the range. 
Grimmia obtusa, Lindb. 
(Eacomitrium heterostichum, var. gracilescens, Br.) 
Shanslieve, Slieve Donard, Slievenamaddy, Slieve Bignian : 
H. W. L. Yery rare. 
Grimmia obtusa, var. p subsimplex, Lindb. 
The black rocks on Slievenamaddy, 1885 : H. "W. L. This rare 
and beautiful moss, which has been only once before found 
in Ireland, might at first sight be mistaken for Grimmia 
fascicularis, from which Dr. Braithwaite has shown me that 
it is distinct, and that my specimen is the true plant. 
Grimmia affinis, Lindb. 
(Eacomitrium heterostichum, var. alopecurum, Huebn.) 
Thomas Mountain and the Great Cairn on Slieve Donard, Miner's 
Hole Eiver Glen, Slievenabrock, summit of Shanslieve, sum- 
mit of Slieve Bignian, Eosstrevor Mountain, the Black Eocks 
on Slievenamaddy, Slieve Commedah : H. W. L. This moss 
is frequent among the range. Carlingford Mountain : Eev. 
C. H. "Waddell. 
