Explanation of PI. XV. 



Bhododendron KawaJcamii Hayata. 



Fig. 1. A branch. 



2. A leaf, seen from above. 



3. The same, seen from below. 



4. 5. Dots on the lower surface of a leaf, 

 fi. All outer-most bract of a flower-cluster. 

 7. 8. Bracts of the inner series : 



9. An inner-most bract. 



10. 11. Flowers. 



12. An calyx-lobe. 



13. Corolla, (expanded.). 



14. 15. Stamens, seen from different sides. 



16. An^ovary. 



17. An ovary, disc-glands seen. 



18. A fiaiit. 



19. The same, valves expanded. 



20. 21. Seeds of dilferent sha^Jes. 



22. An albumen. 



23. An embryo. 



24. The same, greatly magnified. 



