380 Proceedings of the Bof/al Irish Academy. 
Hab. Banks and damp walls. Frequent in many places through 
Ireland. Like many other kinds, it varies much in general 
appearance, and frequently resembles the nearly allied species 
which often grow with it. 
14. T. vinealis (Bridel).— Bryol. Brit., p. 124, tab. 10. De I^otr., 
Muse, Ital. 1, p. 60, tab. 30. Lindb., Europ. Trichost., JN'o. 38. 
Barbula vinealis, Bridel. Bryol. Univ. 1, Suppl., p. 830. Bryol. 
Europ., vol. II. Monogr., p. 24, tab. 10. Rabenhor., Bryothec. 
Europ., IN'o. 668. Spruce, in Hooker's " Lend. Journal of Bot.,'* 
vol. IV., p. 194. 
Hab. On walls and rocks. J^Tot rare near Dublin. Bray, and several 
other places, Wicklow. At Hazelwood,. and on Benbulben 
rocks, Sligo. Common at Cork, and near Eermoy, Isaac 
Carroll. Probably frequent in other limestone districts of 
Ireland. 
15. T. spadicea (Mitten). Seemann's ''Journal of Bot.," vol. v., 
1867, p. 326. Braithwaite in ditto, vol. ix., for 1871, tab. 119, 
f. 6. Trichostomum rigidulum, var a, BryoL Europ. vol. ir., 
Monogr., p. 10, tab. 176. Schimper, Synops., p. 148. Bryol. 
Brit., p. 114. Wilson, Muse. Exsic, JN'o. 109. 
Hab. Moist rocks and stones. Observed in Ireland by Miss Hutchins, 
fide Mitten. 
16. T. rigidula {Miite-n) in Seemann's "Journal of Botany," vol. 
v., 1867, p. 327. Lindberg, Europ. Trichost., p. 42. 
Braithwaite, in Seemann's '' Journal of Bot.," vol. vi., 1871, 
tab. 119, f. 5. Trichostomum rigidulum. Turn., Muse. Hib., 
p. 34. Bryol. Brit., p. 114. Didymodon rigidulum, Muscol. 
Brit., p. 117, tab. 20. 
Hab. On wet clay banks. Waterfall at Powerscourt; in '' The 
Glens," Antrim ; Benbulben, Sligo ; and many other places 
through the country. 
''It is only when the lid of the capsule is carefully removed that 
the top of the teeth of the peristome are seen twisted." Tayl. 
in Flor. Hib. But the habit of the plant is that of a Tortula. 
17. T. insulana (De ITotr.). in Mem. Acad., Turin, pp. 40, 320, 
id. Syllab., p. 180. Braithwaite, in Seemann's " Journal of Bot." 
vol. IX., 1871, p. 292, tab. 120. T. vinealis, /3. flaccida. 
Bryol. Brit., p. 124. Barbula vinealis, /3. flaccida, Bryol. 
Europ., voL II. Monogr., p. 24. Rabenhor., Bryothec. Europ., 
No. 982. Zygotrichia cylindrica, Tayl. in El. Hib., p. 26. 
Hab. By the side of the Dargle River, Co. Wicklow, Fl. Hib. 
Also in the south of Ireland. De ]N"otr. includes this under T. 
vinealis in Briol. Ital., p. 555 ; but Mr. Mitten has proved 
their distinctness. 
