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EXPLANATION OF THE PLATES. 
Puate XCVIII. Corinus AMERICANUS. 
. A flowering branch of the staminate plant, natural size. 
. A flowering branch of the pistillate plant, natural size. 
. Diagram of a flower. 
. A staminate flower, enlarged. 
. Vertical section of a staminate flower, enlarged. 
. Front and rear view of a stamen, enlarged. 
. A pistillate flower, enlarged. 
. Vertical section of a pistillate flower, enlarged. 
. A pistil cut transversely, enlarged. 
- An ovule, much magnified. 
Puate XCIX. Cotinus AMERICANUS. 
. A fruiting branch, natural size. 
. A fruit, enlarged. 
. Vertical section of a fruit, enlarged. 
. Cross section of a fruit, enlarged. 
. A seed, enlarged. 
. An embryo, much magnified. 
. A winter branchlet, natural size. 
