V. Ruins form a basis for the growth of the future plant in its proper order [36]

Root-Stocks, the accumulation of such ruins in a vital order [37]

General questions relating to the office and chemical power of roots [38]

The nomenclature of Roots will not be extended, in Proserpina, beyond the five simple terms here given: though the ordinary botanical ones—corm, bulb, tuber, etc.—will be severally explained in connection with the plants which they specially characterize.

II. The Stem.

Derivation of word [137]

The channel of communication between leaf and root [153]

In a perfect plant it consists of three parts:

I. The Stem (Stemma) proper.—A growing or advancing shoot which sustains all the other organs of the plant [136]

It may grow by adding thickness to its sides without advancing; but its essential characteristic is the vital power of Advance [136]