370 
Proceedings of the Royal Irish Academy. 
3. W. verticillata (Bridel). Spec. Muse, p. 121. Nees et Hornseh., 
Bryol. Germ., tab. 32. Muscol. Brit., p. 86. Bryol. Brit., p. 49, 
tab. 15. Grimmia verticillata, Turner, Muse. Hib.,p. Sl.Eucla- 
dium verticillatum, Bryol. Europ., vol. i., Monogr., p. 3, tab. 40. 
Scbimp. Synops. Muscor., p. 135. Rabenhor., Bryothec. Europ., 
No. 1157. 
Hab. Chiefly on calcareous wet rocks and banks, especially near the 
sea, where it is frequently so incrusted with a calcareous 
deposit as to be nearly as hard as the rock on which it grows. 
On schistose rocks at Cromagloun it may be seen free from any 
deposit of calcareous matter. Although a common species, it 
is rarely found in a fruiting state in Ireland. 
Sect. 4. Trichostomece. Peristome of 16 or 32 teeth, approached in 
pairs. 
[30. Splachnobetum. C. Miiller, Yerhandl. z. B. Wien. 1869, p. 501. 
S. Wrightii (C. Miill.). Braithwaite, in ''Journal of Botany," 
for July, 1872, Plate 123, and our Plate 24. Entosthodon 
minimus, Hunt, in '' Manchester Lit. and Phil. Society's 
Memoirs," XI., p. 19, 1871. Amblyphyllum hibernicum, Lind- 
berg, M.S. 
"Dioicous, minute, gregarious; stems one third to a quarter 
of an inch high, simple subflexuose, dark brown. Leaves light 
green, distant with a narrow and slightly recurved base, 
patent, flattish, obovate or spathulate, rounded at apex, entire 
or minutely serrulate in the male ; crenulate in the upper part 
of the female plant, nerve thick and prominent at back, vanish- 
ing below apex, cells lax, large, pellucid, smooth, rhombo- 
rectangular at base, rhomboidal above, smaller and nearly 
circular at margin. Male flower terminal autheridia without 
paraphyses. Capsule erect, obconical at base, subcylindric, 
wide-mouthed ; operculum conical acute ; teeth of peristome 
very slender, pale red, erect ; calyptra long, conical, narrow" 
(Braithwaite). 
Hab. On the walls and floors of a forcing plant pit, Botanic Garden, 
Glasnevin, D. Orr. This little moss has for several years 
been noticed growing annually within this limited locality. 
Although the male plants occur in great abundance, the 
female are scarce, and neither are found elsewhere in the gar- 
den. It is no doubt an alien which has been introduced with 
foreign plants from the "West Indies, and become naturalised 
here where it grows.] 
