large, projecting, between orbicular and obovate, three-Iobed, the lateral lobes 



obtuse, involute, middle lobe very broad 



margin, and a few purplish streaks on the disc. At the base 



the colour is white, with a broad purpl 



large, shield-like 



nearly square disc^ radiated with a few furrows, and streaked with purple, the edgi 

 emarginate, with three obscure teeth at the apex. Column short, covered by the side 

 lobes of the labellum. white. 



*, 



Fig. 1. Labellum. 2. Column. 3. Pollen-masses: — magnified 



