A BOTANIST'S TRIP TO JAVA. 
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were densely festooned with moss. Nearer the top the mosses 
were largely replaced with lichens, Usnea and Cladonia. There 
were various heaths, one a fine Rhododendron. I noticed a 
shrubby Gnaphalium with the usual xerophytic appearance of 
the members of that genus. The lower part of the plant was 
black. This blackening was especially pronounced in specimens 
growing on lava beds of an old crater. We went down into this 
old crater and saw the few plants which constitute its flora. 
Fig. 34. View from rear of Hotel Bellevue, Buitenzorg, Java. 
There was the Gnaphalium, a tall Polygonum, a Carex, a small 
fern and three heaths besides some much gnarled trees of the 
papilionaceous genus Albizzia. 
We went across the old crater on the partly disintegrated lava 
and climbed to the margin of the new crater. Here we looked 
down to a lake of boiling mud with jets of steam shooting out 
