Explanation of PL I. 



Stauutoma formosaim, HAYATA. 



Fig. 1. A branch. 



2. A leaflet. 



3. A male raceme. 



4. A male flower. 



5. Stamens. 



6. 7. A stamen seen from different sides. 



8. A rudimentary ovary. 



9. A petal. 



10. A female flower. 



11. Carpels. 



12. 13. A carpel, seen from different sides. 



