aggregated, so that the flowers form a large cluster around the 

 upper portion of the stem, among the more crowded foliar 

 Lateral sepals small, green. Vexillum very convex white erect 

 green at the back. Labellum ample, purple, with a long up- 

 curved, obtuse tail, the mouth pure white 



Fig. 1. Stamens. 2. Vexillum. 3. Labellum. -4. Pistil 



-r,mrjnij\ed. 



