Explanation of PL XXIII. 



Rhododendron caryophyllum HAYATA. 



Fig. 1. A branch. 



2. A leaf, showing the lower surface, (natural size). 



3. The same, showing the upper surface (slightly magnified). 

 3a. A portion of the under surface of a leaf. 



4. A bract. 



5. A bracteole. 



6. An outer bract. 



7. An inner bract. 



8. The inner-most bract. 



9. Corolla, expanded. 

 10. 11. 12. Stamens. 



13. An ovary. 



14. Cross section of the same. 



