It consists, in its perfect form, of three parts [222]
These three parts are not yet determinately named in the text: but I give now the names which will be usually attached to them.
A. The Sacque.—The outside skin of a seed [221]
B. The Nutrine.—A word which I coin, for general applicability, whether to the farina of corn, the substance of a nut, or the parts that become the first leaves in a bean [221]
C. The Germ.—The origin of the root [221]
II. The Husk.—Defined [222]
Consists, like the seed when in perfect form, of three parts.
A. The Skin.—The outer envelope of all the seed structures [222]