EXPLANATION OF PLATE 20 



Elleanthua capitatus 



1. Apex of stem with head of flowers, natural size. 



2. Flowers, nat. size, from back. 



3. Do. from side. 



4. Column x about 2, partly front view. 



5. Do. from side. 



C). Anther enlarged. 



7. Pollinia enlarged. 



Elleanthus longibracteatus 



8. Flower with bract x 2. 



9. Column and lip X 2. 



10. Do., lip thrown back, x 2i. 



11. Lip x 2^. 



12. Pollinia enlarged. 



Phaius Tancarvillese (P. grandifoliux) 



13. Flower x about J. 



14. Column slightly enlarged from side. 



15. Do. from front. 



16. Anther enlarged. 



17. Pollinia enlarged. 



Calanthe mex'tcana 



18. Raceme, nat. size. 



19. Flower, with one sepal and one half and one petal 



removed, X 2^-. 



20. Lip flattened X 3. 



21. Anther enlarged. 



22. Pollinia enlarged. 



