.48 Stewart — List of Mosses of North-East of Ireland. 
33, Hypnum undulatum. Dill. 
On mountain heaths-not infrequent. “ On moist banks in the northern 
glens— frequent.”— Moore, Herb. Coll. Sc. Dublin. Slieve Gallion, and 
Sperrin Mountains (Derry); Agnew’s Hill (Antrim) ; Slieve Donard (Down), 
at 1,800 feet. — S.A.S. An elegant moss that only occurs in small quantity. 
I have not met with it in fruit. 
.34. H. SYLVATICUM. Dill. 
Rocks and banlcs-rare. Near Lisburn -Mr. J . Creeth. Crevices of ba- 
saltic rocks, Knockagh ; in fruit on Black Mountain, 4th July, 1864 (Antrim) ; 
ditch bank, Castlereagh Hill (Down). — S.A.S. 
35. H. elegans. .Hook. 
Very rare. Among loose stones, Slieve Donard (Down) ; barren. S.A.S. 
36. H. denticulatum. Dill. 
Not common. “ Frequent in shady crevices of rocks, as at Ballygally 
Head.” Moore, Herb. Coll. Sc. Dublin. On rocks at Slemish Mountain 
(Antrim). — S.A.S. 
37. H. pulchellum. Dicks. 
“ Abundant in shady crevices of rocks at Sallagh Braes and Agnew’s Hill.” 
— Moore, Herb. Coll. Sc. Dublin. 
38. H. alopecurum. Dill. (Thamnium.) 
Damp woods and shady banks of streams— abundant and luxuriant. Derry, 
Antrim, Down. 10-2. 
39. H. ruscifolium. Dill. 
On stones in streams, throughout Derry, Antrim, Down. 9-2. 
40. H. mu rale. Dill. 
“Tops of walls, and on stones near Ballycastle.” — Moore, Herb. Coll. 
Sc. Dublin. 
41. H. confertum. Dicks. 
On damp shady banks, on stones, and on trees, occasionally on walls— 
common. 1 1 -2. 
42. H. Teesdalii. Sm. 
Very rare. Found in 1859 by Mr. J. H. Davies, in Colin Glen, near 
Belfast. This, which is amongst the rarest Irish mosses, occurs on wet rocks 
