. 
MR. W. MITTEN ON NEW SPECIES OF MUSCI FROM CEYLON. 311 
DisricuoruvrruM, Dozy et Molk. Muse. Archip. Ind. 99. 
Mniadelphus, C. Muller. 
D. LIMPIDUM, Thw. et Mitt. 
Caulis elongatus, subsimplex, flaccidus; folia compressa, media late ovali- 
oblonga, in apiculum brevem acuminata, intermedia patentia latera- 
liaque patula longiora ceteroquin conformia, planiuscula, mollia, mar- 
gine parum undulata, angustissime limbata, integerrima, cellulis ro- 
tundo-hexagonis limpidis limitibus angustis areolata, nervo angusto 
sub apice evanido. 
Hab. Ins. Ceylon, Dr. Thwaites. 
Caulis biuncialis, fuscescens, cum foliis 24 lineas latus. Folia tenera 
pallide glauco-viridia, seniora pallide fusca, siccitate corrugata. 
Cells of the leaves towards the apex and margin twice as large 
as in D. succulentum, Mitt. Muse. Ind.; and partly from this 
cause, although the outline of the leaf 1s nearly the same, the pre- 
sent species appears more pellucid. 
D. MUCRONATUM, Thw. et Mitt. 
Synoicum ; caulis breviusculus; folia superiora pallide viridia, seniora 
fusca compressa, omnia fere conformia, elongate oblonga, lateralia pa- 
tentia basi parum angustiora oblonga subspathulata obtusa cum api- 
culo elongato angusto pungente, margine flexuoso limbo angusto cir- 
cumcincto integerrima, nervo usque ad f folii longitudinis producto, 
cellulis parvis rotundis; perichzetialia minuta, ovalia acuta acuminatave ; 
theca in peduneulo breviuseulo rubro gracillimo, ovalis, horizontalis, 
colo sensin attenuato; peristomium dentibus lamina externa per 
lineam mediam divisa, internum zequilongum processibus in membrana 
usque ad 3 ejus longitudinis exserta impositis. 
Hab. Ins. Ceylon, Dr. Thwaites. 
Caulis subsemiuncialis, cum foliis 2 lineas latus. Folia siccitate margi- 
nibus flexuosis. Pedunculus bilinearis. 
Larger than D. cuspidatum, Dozy et Molk. Muse. Archip. Ind. 
t. 33; leaves more oblong, less spathulate, and with longer nerves. 
Eniorvus, Brid. 
E. Lvcrpus, Thw. et Mitt. 
Caulis gracilis, inferne nigro-fuscus, simplex vel superne divisus; folia, 
apicem versus caulis minora, compressa, plana, media intermediaque 
late ovalia, lateralia ovalia subduplo majora, omnia apiculo brevi termi- 
nata, nervis inzequalibus brevibus inconspicuis, limbo angusto e duplici 
serie cellularum angustarum composito marginata, superne denticulis 
parvis spinuloso-serrata, cellulis ovalibus hexagonis post resorptionem 
chlorophylli parietibus angustis areolata ; perichetialia ovato-lanceolata 
