MR. W. MITTEN ON NEW SPECIES OF MUSCI FROM CEYLON. 295 
bus; folia comalia perichetialia subduplo longiora, interiora basi 
latiora, ovalia, convolutacea, exinde in subulam canaliculatam e nervo 
fere omnino constitutam producta, margine versus apicem serrulata ; 
theca in pedunculo brevi pallido cygnicolli-flexo globoso-ovalis, oper- 
culo parvo acumine obliquo, peristomio dentibus pallidis brevibus 
fugacibus annulo lato fere obtectis; calyptra parva ad thece medium 
descendens, fimbriata. 
Hab. Ins. Ceylon, in collibus altioribus ad rivulorum margines et in de- 
clivibus humidis haud rarum. Dr. Thwaites. 
Caulis 1-3 lineas altus. Folia comalia bilinearia stramineo-viridia rigi- 
diuscula subnitida. Pedunculus theca duplo longior. 
Very much resembling S. comosum, Hampe, from the Bogo- 
tan Andes, but with leaves which, when flattened, are more 
nearly Janceolate, with laxer and more pellucid cells. Another 
specimen, without fruit, has been sent by Dr. Thwaites; but it 
does not offer sufficient characters to distinguish it as a distinct 
species, although it has much the appearance of being so. 
DicrANELLA, C. Müll. 
D. EDENTATA, Thw. et Mitt. 
Caulis fertilis brevis, innovationibus infra perichetium oriundis ramo- 
sus; folia laxe disposita patentia, a basi caulis sensim angustata, 
acuta, nervo crassiusculo fere ad apicem usque a pagina distincto 
carinata, canalieulata, margine angusto implano integerrimo, cellulis 
basi ad angulos latioribus oblongis rectangulis, reliquis elongatis an- 
gustis; perichetialia duplo longiora, a basi latiora ovata, subula fere 
omnino e nervo formata angustiore attenuata; theca in pedunculo 
brevi pallido, globoso-ovalis erecta gymnostoma, operculo longe ob- 
lique rostrato. 
Hab. Ins. Ceylon. Dr. Thwaites. 
Plantula vix lineas tres alta, cujus pedunculus bilinearis est. Folia 
caulina semilineam longa, perichetialia interna sesquilineam longa, 
omnia luteo-viridia fuscescentia nitida. Theca intense fusca ore satis 
parvo, operculo a basi depresso subito rostro constricto. 
D. iNFUsCATA, Thw. et Mitt. 
Monoica ; caulis humilis; folia patentia a basi sensim angustata, anguste 
elongata canaliculata iutegerrima, nervo angusto ad apicem usque a 
pagina distincto, cellulis angustis elongatis areolata, perichzetialia a 
basi subovata convoluta sensim attenuata; theca in pedunculo brevi- 
usculo recto, ovali-cylindracea erecta zequalis pallida levis, operculo 
subulato obliquo ; peristomii dentes breves integri. 
Hab. Ins. Ceylon. Dr. Thwaites. 
