372 Proceedings of the Bo yal Irish Academy. 
2. B.jlexifolius (Hook, et TayL). Muscol. Brit., Ed. 2, p. 1 lo, tab. 
20. Bryol. Brit., p. 109, tab. 20. Rabenhor., Bryothoc. 
Europ., ^^0. 662. Leptodontium flexifolium, Hampe in Limiaea, 
20, p. 70. Trichostomiim flexifolium, Engi. Bot., tab. 
2493. 
Hab. On mossy ground in rather elevated situations. A plant 
agreeing with this very closely, has been gathered in the County 
of Antrim, near Cushendall ; and in County Dublin, near Kil- 
liney. In both instances the fruit is very young, but the re- 
markable leaves, unlike those of any other species of the genus, 
can hardly be mistaken. This is all that is known of the 
plant having occurred in Ireland. 
3. D. recurvifolius (Tayl.). Bryol. Brit,, p. 110, tab. 41. Lepto- 
dontium recurvifolium, Lindberg, Trichost. Europ., p. 17. 
Hab. On Knockavohila, a mountain between Kenmare and Killar- 
ney, Ireland, Dr. Taylor. ]S^ot hitherto we believe found else- 
where, or by any other person in the British Isles. Lindberg 
points out the affinities of this moss to the foreign genus Holo- 
mitrium of Bridel. 
4. D. luridiis (Hornsch.). Bryol. Europ., vol. ii. Monogr. 4, tab. 
186. Schimp., Synop. Muse, p.l3L Bryol. Brit., p. 107, tab. 41. 
Briol. Ital., p. 576, Rabenhor., Bryothec. Europ., Ko. 661. 
Bryum obtusifolium, Turner, Muse. Hib. (in part). 
Hab. On walls and rocks chiefly of limestone. Abundant on walls 
between Cork and Passage near the sea, W. Wilson, 1829 ; also 
found in the same place by Isaac Carroll, who pointed it out to 
me there. On a wall near Castle Gregory, and near Tralee, Co. 
Kerry. 
5. D. rulellus (Br. et Schimp.). Bryol. Europ., vol. ii. Monogr,, p. 
3, tab. 185. Schimp., Synop. Muse, p. 130. Bryol. Brit., p. 106, 
tab. 17. Briol. Ital, p. 564.Weissia curvirostra, Hook, and TayL, 
Muscol. Brit, p. 84. 
Hab. Wet banks and damp walls. Also among heath and on sands 
near the sea, frequent in many parts of Ireland. 
32. Trichostomum. Br. et Schimp. 
Calyptra cucullate or campanulate. Capsule ovate-oblong or roundish, 
straight or curved. Peristome of 32 filiform, more or less per- 
fect teeth, disposed in pairs, often joined at base by a short mem- 
brane so as to appear 16. Leaves costate, varying from lanceolate- 
subulate, or ovate to spathulate; areola tion dense and dot like 
above, more lax at the base. 
