MR. W. MITTEN ON NEW SPECIES OF MUSCI FROM CEYLON. 307 
Stephanostoma. Folia compressa, subdistiche imbricata. Fructus 
ex apicibus ramorum oriundus. Theca sessilis, exserta, ore demum 
plicis inflexis, cornuta. 
E. BeLL11, Mitt. 
Monoicum; caulis, repens, ramosus; folia compressa, imbricata, patentia, 
dorsalia orbiculari-ovalia breviter acuminata, ventralia late ovali- 
ovata aeuta, cellulis parvis rotundis obscuris areolata ; ramus fructifer 
elongatus, foliis inter se remotiusculis ovatis acutis, superioribus pa- 
tentibus; theca in pedunculo brevissimo fere sessilis, oblonga, cylin- _ 
dracea, pallide albo-fusca, chartacea, operculo convexo rostellato clausa, 
levis, post operculi delapsum autem ore pallide fusco, plicis quatuor in- 
flexis clauso et brevissime quadricornuto, infra os omnino levis, inferne 
magis ventricosa ; calyptra conica acuta, basi infra os thecze paululum 
descendente, brevissime plurifida, uno latere autem profundius fissa ; 
flos masculus parvus, e foliis tribus ovatis obtusis compositus. 
Hab. India orientalis, ad corticem, Bell. 
The appearance of the specimens seems to denote that they 
have grown in a situation liable to inundation, or that the species 
is riparian in its habitats. 
This very curious moss creeps over bark in a prostrate manner; 
its foliage is of a dull green colour, and when dry is loosely ap- 
pressed to the stem and erecto-patent ; when wet it resembles the 
species of Erpodium and Aulacopilum so closely that there would 
be no hesitation in placing it with them; the fruit, however, 
differs considerably, and comes nearer to Leptocalpe, yet dif- 
fering greatly in the calyptra; the capsule is large, and, after the 
fall of the operculum, becomes almost colourless, excepting the 
plicate mouth, which is pale straw-colour. 
AULACOPILUM, Wiis. 
A. TUMIDULUM, Thw. et Mitt. 
Monoicum; folia compressa, superiora (=dorsalia) divergentia ovato-lan- 
ceolata asymmetrica, basi obliqua, margine superiore arcuato, inferiore 
rectiusculo, inferne parum incurva, apice cellula unica clongata apicu- 
lato, cellulis parvis rotundis obscuris minute papillosis areolata; ven- 
tralia minora, directione patentia, lanceolata; perichetialia interna, 
erecta, convolutacea, ovalia, subacuminate acuta; pedunculus brevis, 
pallidus; theca oblonga, ore satis magno, operculo conico acuminato ; 
calyptra tumida, lobis elongatis appressis, apice acuto subscabro. 
Hab. Ins. Ceylon, ad corticem, Dr. Thwaites. 
Habitu statura adspectuque A. glauco, Wils., simile, foliis autem densius 
insertis, dorsalibus apicibus latioribus minus acuminatis. 
