Explanation of PL XVI, 



Chimaphila rliombifdia HAYATA. 



Fig. 1. Plant. 



2. A flower-bud. 



3. A flower. 



4. Margin of a sepal. 



5. Corolla. 



6. A corolla-lote. 



7. Stamens, seen from different sides. 



8. A flower, corolla taken off, showing an ovary. 



9. A stigma. 



