THE NORWAY MAPLE.
A. platanoides, Linn.
The Norway maple is counted the best maple we have for street planting. Broad, thin leaves, three-lobed by wide sinuses, cover with a thick thatch the rounded head of the tree. Green on both sides, thin and smooth, these leaves seem to withstand remarkably the smoke, soot, and dust of cities, and also the attacks of insects. The keys
are large, wide-winged, set opposite, the outlets meeting in a straight line. These pale green key clusters are very handsome among the green leaves in summer—the tree's chief ornament until the foliage mass turns yellow in autumn. A peculiarity of the Norway maple is the milky juice that starts from a broken leaf-stem.