Explanation of PI. XHI. 



Calm/Me caudatilabetta HAY ATA. 



Fig. 1. The plant. 



2. A flower. 



H. A dorsal sepal. 



4. A lateral sepal. 



5. A petal. 



C. Column and lip. 



7. The same in section. 



8. The same, anther taken off. 



9. Rostellnm, elinandrinm and anther. 



10. 11. 12. Anther, seen from different sides. 



