Explanation of Pl. XXV. 



Pyrola albo-rdia.data Hayata. 



Fig. 1. Tlie plant. 



2. A leaf. 



3. A flower. 



4. A petal. 



5. 6. 7. 8. Stamens, seen from diifereut sicles. 



9. 10. Apical portions of a stamen, seen from clifferent sides. 



11. A flower, petals aucl stamens, taken ofF. 



12. Cross section of an ovary. 



13. A fruit. 



14. A seecl. 



