Explanation of PI. VIII. 



Dmdrobium longicalcarcdum HAY ATA. 



Fig. 1- The plant. 



2. A flower, seen from face, lip taken aside. 



3. The same, seen from back. 



4. The same, seen from front, spur partially taken off to show 



the column and meiitmn. 



5. A dorsal sepal. 



6. A lateral sepal detached from the mentum. 



7. A petal. 



8. A lip, seen from within. 



9. A portion between the claw and lamina of the lip, saeu from back. 



10. Column, seen from side. 



11. The same, seen from back. 



12. The same, in section, seen from side. 



13. The same, seen from back. 



14. An anther with a gland. 



15. The same, seen from back, pollinia taken oil. 



16. The same, with polliuia. 



17. Pollinia. 



18. The same, seen from below. 



