EXPLANATION OF PLATE 18 



Homalopetalum vomeriforme (R. jamaicense) 



1. Plant, natural size. 



2. Column and lip X 3. 



3. Lip flattened X 3. 



4. Anther with pollinia, enlarged. 



5. Pollinia enlarged. 



6. Do. spread out. 



Tetramicra parviflora 



7. Plant, nat. size. 



8. Flower x about 3. 



9. Anther with pollinia, enlarged, 

 10. Pollinia enlarged, 



1 



