SEIFRIZ: PLANTS ON Mr. GEDEH, JAVA 305 
Within the confines of the huge old crater of Gedeh there 
occurs, in addition to the present semi-active crater, another 
small, secondary but extinct crater which harbors a flora all its 
own. This little plant community owes its existence to its 
well protected situation and to the abundance of water which 
drains into it from the summit of Gedeh. Here, on the bottom 
of the small crater pit, there is a rank growth of the sedge, 
Gahnia javanica, scattered in the form of huge hillocks. 
There is probably no tropical mountain rain-forest in the 
world which possesses a greater wealth of plant life than that at 
Tjibodas on Mt. Gedeh. I can imagine no walk more delightful 
and full of interest than from the laboratory at Tjibodas to the 
crater of Gedeh and the summit of Pangerango. The Tjibodas 
Virgin forest, as compared with other similar regions, presents 
an outstanding diversity of vegetative types. While, in certain 
respects, the flora of Java is surpassed by that of Ceylon, and 
by the vegetation in certain parts of India, in neither case, nor 
anywhere in the tropics, so far as my knowledge extends, i 
there within so limited and so readily accessible a region ake a 
multiplicity of genera and such extremes of plant forms—a 
thousand or more species—from bananas to edelweiss. 
I wish to express my indebtedness to Dr. C. A. Backer of the 
Buitenzorg Herbarium for his kindness in identifying many 
plants collected by me. Without Dr. Backer’s generous as- 
sistance so complete a description of the vegetative zones as is 
here given would not have been possible. 
