Explanation of Pl. I. 



Thalictruiii niicranthum Hayata. 



Fig. 1. The plant. 



2. A leaf. 



3. A flower. 



4. A iietal. 



5. 8tamens, fiout aud lateral views. 



6. Fruits. 



7. Aclienes, seeu from diflerent sides. 



8. A seed. 



9. Cross section of tlie same. 



