EXPLANATION OF THE PLATE. 
PLuate DCLXI. Cratacus sERA. 
A flowering branch, natural size. 
Vertical section of a flower, enlarged. 
A calyx-lobe, enlarged. 
. A fruiting branch, natural size. 
Vertical section of a fruit, natural size. 
. Cross section of a fruit, natural size. 
. A nutlet, side view, enlarged. 
OANA PE wD H 
. A nutlet, rear view, enlarged. 
