Explanation of PI. XXVIII. 



Chionantkns serrulatm HAYATA. 



Fig. 1. A branch. 



2. A leaf. 



3. Calyx. 



4. A flower. 



5. Corolla, expanded. 



6. 7. 8. Stamens, seen from different sides; the attaching parts 



of the filaments to the corolla are shaded. 



