Explanation of PI. XXV. 



Hcmipilia formosana HAYATA. 



Fig. I. The plant. 



2. A flower. 



3. The same, seen from face. 



4. A dorsal sepal. 



5. A lateral sepal. 



6. A petal. 



7. A lip. 



8. A column and lip, seen from side. 



9. Apical portion of a column. 



10. The same, seen from side. 



11. The same, in section. 



12. The same, seen from back. 



13. 14. Pollinarium, seen from different sides. 



