198 MR. P. GROOM—CONTRIBUTIONS TO THE 
species as follows :—Oorysanthes picta (with a pink colouring- 
matter): mount Salak in Java, growing in light humous soil, or 
epiphytic on old and mossy tree-trunks. C. mucronata: mount 
Pangarango in W. Java, growing amongst decaying vegetable 
remains. CO. fornicata: mount Salak in Java, on the decaying 
trunks of trees. 
The morphological investigation of the species which I have 
examined confirms the view that Corysanthes is a saprophytic 
genus. 
Fig. 3. 
Corysanthes, sp. 
Fig. 3 represents the species investigated; and in external 
form it appears most like C. picta. The flowers in the two 
specimens I had were unopened. 
The plant possesses only one foliage-leaf, ovate-cordate, with a 
fine tapering apex, a conspicuous midrib, two marginal veins and 
a number of smaller retieulate veins. Below this leaf, on the 
opposite side of the erect axis, is attached a second leaf (s) in 
the form of a scale. The axis continues downwards as a vertically 
descending hairy rhizome. Lower down it, and inserted vertically 
