EXPLANATION OF THE PLATE. 
PiaTte CCXXJ. SamsBucus CANADENSIS, var. MEXICANA. 
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. A flowering branch, natural size. 
. Diagram of a flower. 
. A flower, the corolla displayed, enlarged. 
. Vertical section of a flower, the corolla and stamens removed. 
. A cluster of fruit, natural size. 
. A fruit, divided transversely, enlarged. 
A stone, enlarged. 
. Vertical section of a stone, enlarged. 
. An embryo, much magnified. 
