60 
SILVA OF NORTH AMERICA. BETULACEZ. 
With its gleaming white trunk and luxuriant dark foliage, its compact symmetrical habit in youth, 
and the open airy and graceful head which it bears at maturity, the Canoe Birch is always a picturesque 
feature of the forest, and no tree of its race is more desirable for the decoration of pleasure-grounds in 
countries with cold climates. 
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EXPLANATION OF THE PLATE. 
Piatt CCCCLI. BrEtTuLA PAPYRIFERA. 
. A flowering branch, natural size. 
. Scale of the staminate ament, rear view, enlarged. 
A staminate flower with its scale, side view, enlarged. 
. A stamen, enlarged. 
. Pistillate flowers with their scale, front view, enlarged. 
A fruiting branch, natural size. 
. Seale of the fruiting ament, enlarged. 
A nut, enlarged. 
Vertical section of a nut, enlarged. 
. A seed, enlarged. 
. A winter branch with staminate aments, natural size. 
. A fertile winter-bud, enlarged. 
. A sterile winter-bud, enlarged. 
A young branchlet with unfolding leaves, stipules, and a pistillate 
ament, natural size. 
