EXPLANATION OF THE PLATE. 
Pirate DCXXVI. AcER RUBRUM, var. TRIDENS. 
. A flowering branch of the staminate tree, natural size. 
Vertical section of a staminate flower, enlarged. 
A flowering branch of the pistillate tree, natural size. 
. Vertical section of a pistillate flower, enlarged. 
. A fruiting branch, natural size. 
. Vertical section of a fruit, natural size. 
. End of a sterile branch, natural size. 
8, 9, 10. Leaves from one tree, natural size. 
NOoP WD 
