. Elementary woodworking. Woodwork; Trees. 82 ELEMENTARY WOODWORKING 39. Maple Keys. The fruit, or seeds, of all the maples are known as winged. The flat, thin part gives the seed a swirling motion as it drops from the tree. This is the way nature has of spreading the seed over a large area so that more trees may be started in life. Many tree seeds are winged, but the maple seed or key is so large and so common that every one must at some time have noticed it. 40. The Ash-Leaved Maple. The ash-leaved maple is a leaf very com- mon in our parks. It has no resem- blance to other maple leaves, yet
. Elementary woodworking. Woodwork; Trees. 82 ELEMENTARY WOODWORKING 39. Maple Keys. The fruit, or seeds, of all the maples are known as winged. The flat, thin part gives the seed a swirling motion as it drops from the tree. This is the way nature has of spreading the seed over a large area so that more trees may be started in life. Many tree seeds are winged, but the maple seed or key is so large and so common that every one must at some time have noticed it. 40. The Ash-Leaved Maple. The ash-leaved maple is a leaf very com- mon in our parks. It has no resem- blance to other maple leaves, yet it bears the unmistakable maple key, — "By their fruits ye shall know ; It is therefore a maple. The box elder, or ash-leaved maple, is interesting because it is our only maple having a compound leaf; that is, a leaf stem with several distinct leaflets. Compound leaves are very common (notice the hickory leaf and the horse-chestnut), but not on maples, and our ash-leaved maple is a curiosity. It delights in swampy places, but grows almost anywhere. It is a small tree, and its wood is not especially valuable except for making paper pulp. North America has only nine varieties of maple, while China and Japan have more than thirty. Indeed, it is. Fig. 94. Maple "Keys," a Common Form of Winged Seeds. Please note that these images are extracted from scanned page images that may have been digitally enhanced for readability - coloration and appearance of these illustrations may not perfectly resemble the original Foster, Edwin W. Boston, New York [etc. ] Ginn & company
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