jt fd pb 
be Oo 
CONANT FE WD 
EXPLANATION OF THE PLATE. 
Puate XCIII. Acer saccHAarRInum. 
. A branch with staminate flowers, natural size. 
. A branch with pistillate flowers, natural size. 
A staminate flower, enlarged. 
. A pistillate flower, enlarged. 
A pistil, enlarged. 
. Vertical section of a pistillate flower, enlarged. 
. A fruiting branch, natural size. 
. Vertical section of a samara, enlarged. 
. Vertical section of a seed, enlarged. 
. An embryo, enlarged. 
An embryo displayed, enlarged. 
A winter branchlet, natural size. 
