398 Proceedings of the Roijal Irish Academy. 
Capsule sub-cylindrical, with a roundish- 
oblong apophysis; peristome half the 
length of capsule. Dioicous, . . 2. S. svkm eicum. 
Capsule urceolate, apophysis scarcely wider 
than the capsule ; teeth of the peristome 
in eight pairs. Monoicous, . . . 3. S. mi^igides. 
1. S. ampullaceum (Linn.). Sp. PL, p. 1572. Bryol. Europ., 
vol. III. Monogr., p. 10, tab. 293. Bryol. Brit., p. 289, tab. 9. 
Muscol. Brit., p. 39. Rabenhor., Bryothec. Europ., 'Eo. 
43. 
Hab. On bogs and heaths, growing on the dung of herbivorous 
animals. Erequent in many parts of Ireland. 
2. S. sphcericum (Hedw.). Stirp. 2, 46, tab. 16. Bryol. Europ., 
vol. III. Monogr., p. 8, tab. 292. Bryol. Brit., p. 290, tab. 9, 
Muscol. Brit., p. 36. 
Hab. Moist meadows and bogs. On the dung of herbivorous ani- 
mals. Often found with the former species, and common in 
Ireland. 
3. S. mnioides (Linn. fil). Meth. Muse, p. 6, Engl. Bot., tab. 1589. 
Muscol. Brit., p. 38, Tetraplodon mnioides, Br. et Sch., Bryol. 
Europ., vol. in. Monogr., p. 5, tab. 289. Bryol. Brit., p. 291, 
tab. 9. Eabenhor., Bryothec. Europ., JS'o. 65. 
Hab. Moist places on mountains, generally on the dung of animals. 
iN'ear Bantry, Miss Hutchins ; near Belfast, Templeton ; Bran- 
don, Kerry. Lugnaquillia, Wicklow. Bather rare. 
Tribe 9. Baeteamieje. 
47. Baeteamfa. Hedw. 
Calyptra small, dimidiate, fugacious. Capsule on long or short pe- 
duncle, sometimes immersed, cernuous, seldom erect or pendu- 
lous, mostly furrowed when dry ; lid depressed ; hemispherical 
or conic-umbonate. Peristome usually double, more rarely single 
or none, exterior teeth 1 6, equidistant, lanceolate ; the inner 
peristome a plicated membrane, divided into 8-16 divergent cilia, 
with rudimentary ciliolse sometimes present. Leaves spreading 
equally, lanceolate or lanceolate-acuminate, papillose, of a firm 
texture ; areolation dense, quadrate. Inflorescence synoicous, 
monoicous or dioicous. 
