356 Proceedings of the Royal Inah Academy. 
Sect. 3. Matiores, Wils. 
Leaves without piliferous points, spreading 
every way. Inflorescence dioicous, . 9. G, patens. 
Sect. 4. Leuco^hceece. 
Calyptra conico-mitriform, lobed at the base ; 
leaves shortly piliferous at their points ; 
Inflorescence monoicous, . , .10. G. otata. 
Leaves with long white hair points. Inflo- 
rescence dioicous, . . . .11. G. LEXJCOPH^A. 
1, G. pulvinata {^mit]i). Engl. Bot, tab. 1728. Muscol. Brit, Ed. 
2, p. 68. 
Hab. On walls and rocks all over Ireland, from sea level to the 
tops of the highest mountains. 
2, G. orlicularis (Br. et Sch.) BryoL Europ., vol. in. Monogr., 
p. 13, tab. 240. Engl. Bot., SuppL, tab. 2888. Bryol. Brit., p. 
154, tab. 45. 
Hab. On the faces of walls in warm situations. Near Cove, Cork, 
where it was pointed out to me by Isaac Carroll. On a wall 
by the side of the road leading to Dublin from Stillorgan. 
The tufts of this species are less compact than those of the 
former, and spread continuously, sometimes to a foot or more 
in breadth. . >^ 
3. G, spiralis (Hook, and Taylor). Muscol. Brit., 69. G. spiralis, 
Greville, Scot. Crypt. EL, tab. 233. Bryol. Europ., vol. m. 
Monogr., p. 14, tab. 242. Dryptodon spiralis, Bridel., Bryol. 
Univ. 1, p. 772. 
Hab. On rocks in the subalpine parts of the country. Abundant on 
Slemish hill, and also at Sillagh-braes, near Larne, Antrim. 
Upper Lough Bray, Wicklow. On rocks by the sides of the 
lakes above Kylemore Castle, Galway. It has not been found 
with fruit in Ireland. 
4. G. torquata (Greville). Scot. Crypt. EL, tab. 199. G. torta, 
Nees etHornsch. Bryol. Germ., tab. 24, fig. 24. Bryol. Brit., 
p. 156, tab. 32. 
Hab. On moist rocks at elevations varying from 1000 feet above 
sea level to the tops of the highest mountains in Ireland. It 
is found in most of the counties where the hills attain that 
elevation, but always barren. 
