n 



EXPLANATION OF PLATE 25 



Maxillaria alba 



\. Plant, half natural size. 



2. Flower, nat. size. 



3. Lip and column slightly enlarged. 



4. Lip flattened slightly enlarged. 



5. Anther enlarged. ' 



6. Pollinia enlarged. 



Maxillaria sessilis 



7. Tip of leaf nat. size. 



8. Flower nat. size. 



9. Lip flattened nat. size. 



10. Column enlarged. 



11. Anther enlarged. 



12. Pollinia enlarged. 



Maxillaria rufescens 



13. Plant, half nat. size. 



14. Lip flattened X Ih 



15. Anther enlarged. 



16. Pollinia enlarged. 



Maxillaria rufescens var minor. 



17. Flower, nat. size. 



18. Lip flattened slightly enlarged. 



19. Column, nat. size. 



