and others from the sources of the Maraiion, detected by War- 
szewicz. It may certainly be reckoned among the finest species 
of the genus, from its ample panicle, large size of the flowers, 
and the rich golden-yellow of the perianth, and the dark cinna- 
mon-coloured spots. It is easily distinguished from its con- 
geners, by “ the base of the labellum being very convex, a little 
hollowed out in front, and excavated with a deep pit on the 
under side,”—only to be seen by looking at the back of the 
flower, and putting aside the two lateral sepals. It is this cavity 
which suggested to the author the specific name, 
The pseudobulbs and leaves were unknown to Dr. Lindley 
when he published his description. The former are four to five 
mches long, ovate-oblong, compressed, subsulcate. The leaves 
are a foot to one and a half foot long; two arise from the sum- 
mit of the pseudobulbs, and three to five spring from its base: 
the latter have broad, sheathing bases. 
Fig. 1. Column and labellum, seen from above,—magnified. 
