Moore— the Mosses of Ireland. 
459 
Hab. Heathy places, tops of turf walls, &c. Common. The 
variety ^ strictum, P. strictum, Menzies, in Linn. Soc. 
Trans., vol. iv., tab. 5, fig. 7, and var. 7 alpestre, P. alpestre, 
Schwsegr., Suppl., tab. 97, occur occasionally, the latter 
in elevated situations. 
3. P. piliferum, Schreb., Spicil. PI. Lips., p. 74. Bryol. Erit., 
p. 213, tab. 10. Bryol. Europ., vol. iv. Monogr., p. 11, tab. 
422. Schimp., Synops. Muscor., p. 446. Turner, Muse. Hib., 
p. 82. Muscol. Brit., Ed. 2, p. 44. 
Hab. Tops of turf walls, dry heaths, and moory places. Yery 
common, and conspicuous by the purple calyptra. 
4. P. gracile (Dicks.). Menzies, in Linn. Soc. Trans, vol. iv., p. 73. 
Bryol. Brit., p. 211, tab. 46. Bryol. Europ., vol. iv. Monogr., 
p. 10, tab. 421. Schimp., Synops. Muscor., p. 444. Raben- 
hor., Bryothec. Europ., No. . 122. Engl. Bot., tab. 1827. 
Hab. Turf bogs, &c. Common. It is often passed over as a weak 
state of P. commune, which it resembles. 
5. P. attenuatum (Menzies), in Linn. Soc.|Trans., vol. iv., p. 72. 
Lindberg, Observationes de formis prsesertim Europseis 
Polytrichoidearum" (Helsingfors, 1868). P. formosum, Hedw. 
Sp. Muse, p. 92. Bryol. Brit., p. 210, tab. 46. Rabenhor., 
Bryothec. Europ., No. 118. P. commune, var. /3, Hook, and 
Taylor, Muscol. Brit., Ed. 2, p. 47. 
Hab. "Woods and banks in upland districts. Kylemore, Galway, 
is the only place where I have collected specimens. Powers- 
court, Dr. Whitley Stokes, in Turner's Muse. Hib. 
Tribe. 17. BIJXBAUMIE^. 
76. BiJXBAUMiA. Haller. 
Calyptra small, fugacious, cylindrical- campanulate. Capsule large, 
apophysate, inclined or oblique, flat above, and gibbous under- 
neath, pedicel rough ; lid small, sub- conic. Peristome double, 
the exterior united with the annulus, of 16 linear moniliform papil- 
lose teeth ; interior a pale conically-plaited membrane. Leaves 
few and small, with large oblong areolge. Inflorescence dioicous ; 
male flowers gemmiform. 
1. B. aphylla (Haller). Enum. Meth. Helv.— BryoL Brit., p. 
199, tab. 22. Bryol. Europ., vol. iv. Monogr., p. 5, tab. 
427. Eabenhor., Bryothec. Europ., No. 110. Turner, Mus- 
col. Hib., p. 104. Wade, Plantse Rariores, p. 97, cum icone. 
