162 MR. W. MITTEN ON THE MUSCI AND HEPATICJE 
Ruacoritum, Brid. 
R. MucronatTuM, Beauv. 
Hab. Fernando Po, Barter. 
R. AFRICANUM, sp. nov. Dicicum, habitu staturaque R. tomentosi, foliis 
lateralibus ovalibus, nervo in mucronem excurrente, marginibus serru- 
latis, cellulis oblongis rotundisque distinctis viridibus, tegminalibus 
parvis e basi hastata subulatis serrulatis cellulis minoribus, pericheti- 
alibus teneris e basi latiore subito subulatis integerrimis, theca in pe- 
dunculo elongato trigono inclinata subhorizontali elongata plicata ore 
obliquo, opereulo subulato rostrato, peristomio magno normali, calyptra 
pilosa dimidiata. : 
Hab. Cameroons Mountain, alt. 7000 feet, Mann. 
Rather larger, but nearly resembling R. tomentosum, Schw. Capsule 
longer, and inflorescence different. 
MNIACEA, Mitten. 
Fisstprns, Hedw. 
F. viRIDULUS, Schw. 
Hab. Cameroons Mountain, alt. 7000 feet, on rocks, Mann. 
F. microcarpus, sp. nov. Monoicus, caule ramoso, foliis patentibus 
late lanceolatis obtusiusculis subundulatis, nervo pellucido sub apice 
evanido, lamina folii vera ad medium producta eequali, dorsali basi con- 
tracta non decurrente, omnium laminarum marginibus tenuissime cre- 
nulatis, cellulis distinctis diametro circiter sp5 uncie metientibus, theca 
in pedunculo gracillimo pallido minute ovali tenera erecta «quali, 
operculo subulato, peristomio dentibus brevibus subintegris dicranis- 
que, calyptra mitriformi subscabra. 
Hab. Banks of the Nunn, in large patches on bark, Mann. 
Very near to F. sciophyllus, Mitten; but leaves more obtuse, not obscure ; 
cells easily distinguished ; capsule quite symmetric. 
Ruizoconium, Brid. 
R. sPINIFORME, L. 
Hab. Fernando Po, Mann. 
MxrvM, Dill. 
M. ROSTRATUM, Schw. 
Hab. Fernando Po, Mann. 
DALTONIA, Hook. et Tayl. 
D. PATULA, sp. nov. Monoica, foliis patentibus late lineari-lanceolatis 
nervo ad } evanido carinatis, margine e serie triplici cellularum elon- 
gatarum integerrimo, cellulis omnibus parvis rotundato-ovalibus pellu- 
cidis latitudine circiter 55/55 longitudine 4;^;; unciæ metientibus, peri- 
