EXPLANATION OF THE [ILLUSTRATION 
PLeuRoOTHALLIS Harprncertana R, FE. Schultes. 1, 
plant about two and one half times natural size. 
2, flower, magnified about twenty-five times. 8, 
column, magnified about twenty-five times. 4, lip 
and column, seen from the side, magnified about 
twenty-five times. 5, leaf and inflorescence, mag- 
nified about six times. 
Drawn by G. W. Ditton 
[ 32 ] 
