424 Proceedings of the Eoyal Irish Academy. 
4. P. denticidatum (Dill.). Bryol. Eiirop., vol. v. Monogr., p. 
12, tab. 501-502. Schimp., Synops. Muscor., p. 582. Ea- 
benlior., Eryotliec. Europ., JSTo. 691. Hypnum denticulatum, 
Bryol. Brit., p. 407, tab. 24. Turner, Muse. Hib., p. 146. 
Engl. Bot., tab. 1260. 
Hab. "Woods, banks, and rocks. Erequent in many parts of Ire- 
land. The variety (B. ohtusi folium, Hook, and Tayl., var. 7, 
Turner, Muse. Hib., p. 146, tab. 12, f. 2, was collected on the 
top of Benbulben, Sligo, by Bobert Brown. 
5. P. pulcliellum (Dicks.). Bryol. Europ., vol. v. Monogr., p. 9, 
tab. 497. Schimp., Synops. Muscor., p. 578. Eabenhor., 
Bryothec. Europ., I^o. 16. Hypnum pulchellum, Bryol. Brit., 
p. 403, tab. 24. Turner, Muse. Hib., p. 136. Hook, and Tayl., 
Muscol. Brit., p. 163. 
Hab. Wet banks among rocks in the mountainous parts of Ireland. 
Sillagh-braes, near Larne, Antrim ; Carrantuohill ; and Mac- 
gillicuddy's Eeeks, Kerry ; Powerscourt "Waterfall, Taylor, 
in El. Hib. 
63. Cylindeothecium. Br. et Schimp. 
Calyptra dimidiate, narrow, elongated. Capsule erect cylindrical, 
pedicellate, annulate; lid conico-rostellate. Peristome double, 
the exterior of 1 6 trabeculated teeth, slightly split at the apex ; the 
interior of 16 cilia, narrow and carinate, slightly connected at 
the base. Leaves imbricated, compressed, very shortly two- 
nerved, or nerveless, having a shining lustre when dry ; areola- 
tion rather dense, composed of narrow elongated cellules, larger 
and more transparent at base. 
1. C. concinnum (De I^otr.). Mantiss. ]N"o. 18. Schimp., Synops. 
Muscor., p. 516. C. Montagnei, Bryol. Europ., vol. v. Monogr., 
p. 6, tab. 465. Bryol. Brit., p. 327, tab. 54. Eabenhor., Bryo- 
thec. Europ., ^^0. 19. 
Hab. Banks, rocks, and sand-hills. Portmarnock sands, D. Orr ; 
Glen near Sallygap; sand-hills between MalahideandPortrane, 
Dublin; Dunfanaghy, Donegal, 1866. 
