Explanation of PI. XIV. 



Pieris iaiwaniana Hayata. 



Fig. 1. A branch. 



2. A leaf, seen from above. 



3. The same, seen from below. 



4. A flower. 



5. A flower, part of corolla taken off, showing stamens. 



6. Vertical section of the same, corolla and stamens taken off. 



7. 8. Stamens seen from different sides. 



9. 10. 11. Transverse sections of an ovary. 



12. A fruit. 



13. A seed. 



14. An albumen. 



15. An embryo. 



