EXPLANATION OF THE PLATES. 
Puate CIV. Raus COPALLINA. 
. A flowering branch of the staminate tree, natural size. 
. A flowering branch of the pistillate tree, natural size. 
A staminate flower, enlarged. 
. Vertical section of a staminate flower, enlarged. 
. A pistillate flower, enlarged. 
. Vertical section of a pistillate flower, enlarged. 
. A pistil, enlarged. 
OCANPmah wn ne 
. An ovule, much magnified. 
PuaTE CV. Ruvs coPpALLINa. 
. A fruiting branch, natural size. 
. A fruit, enlarged. 
. Vertical section of a fruit, enlarged. 
. A stone, enlarged. 
. A seed, enlarged. 
. An embryo, much magnified. 
Naar wd we 
. A winter branchlet, natural size. 
Piate CVI. Ruavus copALLINA, var. LANCEOLATA. 
. A branch of a staminate panicle, natural size. 
- A branch of a pistillate panicle, natural size. 
. A staminate flower, enlarged. 
. A pistillate flower, enlarged. 
. A fruiting branch, natural size. 
On Fr © DY 
- Vertical section of a fruit, enlarged. 
