Explanation of PL VI. 



Chrysanthemum arisanense HAYATA. 



Fig. 1. The plant, 



2. A leaf. 



3. An outer involncral bract. 



i 



4. An inner involucral bract. 



5. A marginal flower. 



6. Apical portion of the style. 



7. Basal portion of the same style with the achene. 



8. A disc-flower. 



< 9. The same, corolla and stamens taken off. 



10. Corolla expanded and stamens. 



11. Stamens expanded. 



12. An embryo. 



13. The same, one of the cotyledons taken off. 



