FILICES HORTI BOGORIENSIS, 
A LIST OF THE FERNS CULTIVATED IN 
THE BUITENZORG BOTANICAL GARDENS. 
DIVISION II K. 
BY GAPT. C. R. W. K. VAN ALDERWERELT van ROSENBURGH. 
Many years have elapsed since D" Raciboeski’s determina- 
tion of the ferns, cultivated in the Buitenzorg Botanical Gardens. 
In the meantime a large number of these plants died and have 
been replaced by others, partly undetermined, partly provided with 
false labels. Also the names of the surviving plants had for the 
greater part passed out of use, i. e. they did not agree with the 
present conceptions of nomenclature. 
For these reasons a revision of the names and a new determina- 
tion was urgently required. I decided therefore to undertake, as far 
as possible, this task during iny engagement at the Buitenzorg 
Herbarium. The following pages contain the result of my eflforts. 
The plants marked -\- are those of which the determination is 
practically certain. Not so quite certain is the determination of 
those marked A, partly because they were still too young, partly 
because they were not Malayan plants, or their origin could not 
be accurately ascertained, so that the complete determination would 
have required too much time. 
The plants that are not marked are not determined and of 
many of them neither species nor genus could be made out. Possibly 
at a later date, when they are full-grown, a defmite description can 
be given. 
In the ensLiing pages I have made use of my Handbook on 
„Malayan Ferns”, then only existing in manuscript, and the names 
on the labels agree with those given in the above treatise. As 
to the synonyms the original names only are quoted, with however 
the addition of those which are to be found in Christensen’s 
éi-. 
