EXPLANATION OP THE PLATE. 

 Plate CXLII. Vibuknum utile. 



1. A flowering branch, natural size. 



2. A flower with the corolla displayed, enlarged. 



3. A fruiting branch, natural size. 



4. A stone, dorsal view, enlarged. 



5. A stone, ventral view, enlarged. 



6. Cross section of a stone, enlarged. 



This plate was made from Henry's Hupeh specimens preserved i. 

 Gray Herbarium. 



