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A key or key-fruit (called by Botanists a Samara) is like an akene or nut, only it is winged. This is a pair of keys.

Key

A key or key-fruit (called by Botanists a Samara) is like an akene or nut, only it is winged. This is…

Here is a representation of two seeds of the maple, with their wings. They always grow in this way, in pairs.

Maple Seeds

Here is a representation of two seeds of the maple, with their wings. They always grow in this way,…

The seeds of the Mountain Maple, Acer spicatum, (Keeler, 1915).

Mountain Maple Seed

The seeds of the Mountain Maple, Acer spicatum, (Keeler, 1915).

The seeds of the Red Maple, Acer rubrum, (Keeler, 1915).

Red Maple Seed

The seeds of the Red Maple, Acer rubrum, (Keeler, 1915).

Look at the little feathery ball on the stalk of the dandelion after the flower is gone. The seeds are in the middle of that ball.

Dandelion Seeds

Look at the little feathery ball on the stalk of the dandelion after the flower is gone. The seeds are…

Each seed has a very little stem. This stem has on its end some very fine fibres standing out all around. It is curious to see how regularly they are arranged so as to make that beautiful feathery ball (Hooker, 1886).

Dandelion Seeds

Each seed has a very little stem. This stem has on its end some very fine fibres standing out all around.…

The staminate flowers of the Silver Maple, Acer saccharinum, (Keeler, 1915).

Silver Maple Flower

The staminate flowers of the Silver Maple, Acer saccharinum, (Keeler, 1915).

The seeds of the Silver Maple, Acer saccharinum, (Keeler, 1915).

Silver Maple Seed

The seeds of the Silver Maple, Acer saccharinum, (Keeler, 1915).

The seeds of the Striped Maple, Acer pennsylvanicum, (Keeler, 1915).

Striped Maple seed

The seeds of the Striped Maple, Acer pennsylvanicum, (Keeler, 1915).

The seeds of the Sugar Maple, Acer saccharum, (Keeler, 1915).

Sugar Maple seed

The seeds of the Sugar Maple, Acer saccharum, (Keeler, 1915).