SUPPLEMENT 
TO THE 
JOURNAL OF THE PROCEEDINGS 
OF THE 
LINNEAN SOCIETY OF LONDON. 
Musci Indie Orientalis; an Enumeration of the Mosses of the 
East Indies. By WA MITTEN, Esq., A.L.S. 
[Read May 6, 1858.] 
Ix offering the following enumeration of the Indian Musei, it will 
be necessary that some reasons should be given for the departure 
from any systematie arrangement hitherto adopted. From the 
date of Bridel’s ‘ Bryologia’ to that of C. Miiller’s ‘ Synopsis,’ there 
has been no systematic arrangement of the whole order. Of 
these, Bridel’s arrangement, from the progress of the science and 
the addition of an immense number of species, cannot now be 
followed, whilst that of the ‘Synopsis’ has been departed from in 
the following particulars:—The Cleistocarpous Order has been 
suppressed, because its component groups are readily referable to 
families of higher development: thus, Sphagnacee have been re- 
moved from the side of Leucobryacee, the leaves of the latter 
being here understood to be composed entirely or almost entirely 
of a dilated nerve; Fissidentee are evidently so closely allied to 
the distichous Rhizogonia, that the place of the group must be 
with Mnium ; Polytrichacee have been removed from the Mniacee 
on account of the different structure of their peristome ; Lepto- 
trichacee have been united with Dicranacee, being destitute of 
distinctive character; Pottioidee are here called Trichostomacee, 
of which the perfect peristome is that of Barbula, Tortula, or 
LINN. PROC.— BOTANY, SUPPLEMENT. B 
