EXPLANATION OF PLATE 4 



Pseudocentrum minus 



1. Plant, half natural size. 



2. Flower, about nat. size, from side 

 Do. from back. 

 Do. from front. 

 Flower x about 3. 

 Section of flower x between 2 and 3, 

 Column enlarered. 



3. 



4. 



5. 



6. 



7. 



8. 



9. 

 10. 

 11. 



Column from side enlarged. 

 Anther enlarged. 

 Anther, with pollinia, enlarged. 

 PoUinia enlarged. 



