354 Proceedings of the Royal Irish Academy, 
Hab. Crevices of rocks in subalpine parts of tlie country. Benbul- 
ben, Sligo, in fine fruit, May, 1871 ; Lough Bray, and Glen- 
malur, Wicklow. 
2. D. incUnatum (Br. et Schimp.). Bryol. Europ., vol. n. Monogr., 
p. 5, tab. 194. Bryol. Brit., p. 105, tab. 20. Cynodontium incli- 
natnm, Schwaegr. SuppL, p. 111. Didymodon inclinatum, Mus- 
col. Brit., p. 115. 
Hab. Bocks, and among tbe sand-hills on the coast of Connemara, 
Mackay. Benbulben, Sligo, and also on the sand-hills between 
Benbulben and the sea, in fine fruit, July, 1856 ; sandy 
banks between Killala and Ballycastle, Mayo. Rare in Ire- 
land. 
Tribe 3. Geimmie^. 
17. Campylostelium. Bruch. et Schimp. 
Capsule pedicellate, oblongo- cylindrical ; lid conico-subulate. Pe- 
ristome single, of 16 long lanceolate teeth, trabeculated, and 
slightly cloven above, connected by a membrane rising as high as 
the mouth of the capsule. Calyptra 4-5 cleft at base. Leaves 
crowded at base of stem, elongate-lanceolate, slightly canaliculate; 
areolation small dot-like, basal cells much larger. Inflorescence 
monoicous. 
C, saxicola (Br. et Schimp.). Bryol. Europ., vol. ii. Monogr., 
p. 3, tab. 116, Schimp. Synop. Muscor., p. 688. Bryol. 
Brit., p. 52, tab. 13. Dryptodon saxicola, Bridel., Bryol. Univ. 
1, p. 770. Grimmia saxicola, Muscol. Brit., Ed. 2, p. 67. 
Hab. On granite rocks near Lough Bray, Wicklow, Taylor in Flor. 
Hib. This is one of the smallest of all our Mosses, and may 
be easily passed over ; it is not, however, so rare among 
rocks in the granite districts of Wicklow and Dublin as has 
been supposed. I have gathered it in a good state of fructi- 
fication, from Eebruary to April, on shady rocks, by the 
sides of the small streamlets falling from the high ground to the 
river in Kelly's Glen, Dublin ; also near Lough Bray. 
18. Geimmia. Ehrh. 
Calyptra small, conico-mitriform or dimidiate. Capsule pedicellate, 
ovate, or nearly cylindrical. Peristome single, of 16 lanceolate 
teeth, more or less perforated and cribrose, rarely 2-3 cleft above. 
Leaves more or less imbricated, somewhat octofariously disposed 
on the stems; areolation dense and dot-like. Inflorescence 
monoicous or dioicous. 
