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Drawing
Forest Nature Trail Guide, page 6 illustrations and layout with preliminary sketches1946
Watts, May Theilgaard
Photographic image
Neal McLain measuring the diameter of a maple tree trunk
Photographic image
Opposite buds: Horse chestnut, Ash, and Maple
Photographic image
CHANGE bench in the maple (Acer) collection at The Morton ArboretumJune 11 2013
The Morton Arboretum
Photographic image
Acer (maple), fruit