294 MR. W. MITTEN ON NEW SPECIES OF MUSCI FROM CEYLON. 
as it was by Dr. Montagne, when he described it as PAyllogonium 
callichroum ; indeed, so close is the resemblance of the foliage of this 
moss to that of the Phyllogonia, that the barren stems might well be 
supposed to belong to a species of that genus. The remaining spe- 
cies, ascribed to Orthorhynchium, is a barren moss from the Philip- 
pine Islands (O. pAilippinense) ; and its description offers no positive 
difference whereby it may be distinguished from the Neckera phyl- 
logonioides, Sull. United St. Exped. t. 17, which was also obtained 
in the same islands. Of the genns Orthorhynchium itself, it ap- 
pears that the chief distinction exists in the striation of the ca- 
lyptra, which is really like that of Orthotrichum, and covers a great 
portion of the capsule; whereas in thé other Phyllogonia this 
organ is small and smooth; in P. angustifolium it covers only the 
short beak of the operculum, and in this particular is similar to 
that of some Fissidentes, in which the calyptra, being too short to 
be affected by the growth of the capsule, remains unsplit. 
The occurrence of another species of the genus Spherothectum 
in Ceylon is a curious circumstance, which prompts the inference 
that among the Campylopus-like barren mosses of the European 
and Indian mountains some further species may be found with 
the curious inconspicuous phascoid fruit. All the descriptions of 
the species about to be mentioned have been drawn up by me; and 
for any errors or oversights in their definition I am alone respon- 
sible; but as many of the species had already been clearly distin- 
guished by Dr. Thwaites, it has been arranged that our joint 
names should be attached to them, which appears to me a very 
small tribute to the energy with which he has investigated the 
flora of Ceylon. A few species nearly allied to several Ceylon 
mosses, but hitherto undescribed, have been added from various 
sources. 
Hurstpierpoint, June 1872. 
SPHAROTHECIUM, Hamp. in Triana et Planchon, Fl. Nov. Granat 
Musci, p. 25. 
S. RECONDITUM, Thw. et Mitt. 
Czespitosum, humile; caulis superne ramulis fertilibus pluribus in comam 
congestis divisus; folia inferiora erecto-patentia anguste lanceolata 
subulato-acuminata canaliculata, margine integerrimo, levia, nervo 
inferne 2 folii latitudinis occupante, usque fere ad apicem a pagina 
distincto, cellulis basalibus rubro-fuscis inde oblongis rectangulis pel- 
lucidis superne in parvas ob longas obliquas obscuras densas transeunti- 
