EXPLANATION OF PLATE 20 



Wleanthua cajpitatus 



\. 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. 



6. Anther enlarged. 



7. Pollinia enlarged. 



Elleanthus longihracteatus 



8. Flower with bract x 2. 



9. Column and lip X 2. 



10. Do., lip thrown back, X 2^. 



11. Lip X 2J. 



12. Pollinia enlarged. 



Phaius Tancarmllese (P. grandifolius) 



13. Flower X about J. 



14. Column slightly enlarged from side. 



15. Do. from front. 



16. Anther enlarged. 



17. Pollinia enlarged. 



Galanthe mexicana 



18. Raceme, nat. size. 



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



removed, X 2 J. 



20. Lip flattened x'^S. 



21. Anther enlarged. 



22. Pollinia enlarged. 



