EXPLANATION OF PLATE 16 



Epidendrum monticolum 



1. Plant, natural size. 



2. Flower X IJ. 



3. Petal X 2}. 



4. Lip X 2i. 



Epidendrum parvilohum 



5. Plant, lower part, with leaf, nat. size. 



6. Petal X 3. 



7. Lip X 3. 



Epidendrum helvederense 



8. Petal X 3. 



9. Lip X 3. 



10, Capsule, nat. size, 



