these are all spreading and obovato-spathulate, but not 

 equal ; the upper sepal is broadly spathulate, the lateral ones 

 narrow ; the petals rather larger than these, all more or less 

 undulated, especially at the margin. Lip large, three-lobed ; 

 lateral lobes small, obovate ; intermediate one very large, two- 

 lobed : at the base is a raised crest, divided into two portions ; 

 the upper one with two elevated points or glands, the lower 

 one presenting five smaller points. Column short, with a 

 decurved tooth or small wing on each side. Anther-case 

 hemisphaerical. 



Fig. 1. Column and Lip. 2. Column and base of the Lip, with the 

 lateral Lobes : — magnified. 



