EXPLANATION OF THE PLATE. 

 Plate CLXX. Tetrazygia bicolor. 



1. A flowering branch, natural size. 



2. Vertical section of a flower, enlarged. 



3. A stamen, enlarged. 



4. Base of the style, showing the dentate sheath. 



5. A fruiting branch, natural size, collected on the Bahamas by Curtiss. 



6. A fruit divided transversely, enlarged. 



7. A seed, enlarged. 



8. A seed, side view, enlarged. 



