EXPLANATION OF PLATE 13 



Coelia triptera 



1. Plant, half natural size. 



2. Flower with dorsal sepal held down X 2. 



3. Flower with sepals and petals removed X 2. 



4. Do. from one side x 2. 



5. Column enlarged. 



6. Anther enlarged. 



7. Pollinia enlarged. 



Isochilus linearis 



8. Plant, half nat. size. 



9. Flower x nearly 2. 



10. Flower, with half the sepals and one petal removed, X 3. 



11. Lip x 3. 



12. Anther enlarged 



13. Pollinia enlarged. 



