ple, erecto-patent. Zip large, broadly obovate in general outline, 
white, with the disc deep purple, gradually fading into white to- 
wards the margin: the sides of the lip are moderately involute, 
and represent the two lateral lobes, which do not almost meet as 
in W. quadrata ; the intermediate lobe is suborbicular and slightly 
retuse: at the base of the lip within is a large, fleshy, almost white 
appendage or crest, with many furrows, and fringed or digitate 
with many subulate segments. Column short, concealed by the 
moderately involute sides of the lip, club-shaped, white. Azther- 
case small. Pollen-masses four, inserted upon a large, triangular 
caudicle. 
Fig. 1. Lip. 2. Column. 3. Pollen-masses :—magnified. 
