Asa Gray

Asa Gray
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by: Asa Gray
These papers are now collected at the request of friends and correspondents, who think that they may be useful; and two new essays are added. Most of the articles were written as occasion called for them within the past sixteen years, and contributed to various periodicals, with little thought of their forming a series, and none of ever bringing them together into a volume, although one of them (the... more...

by: Asa Gray
Section I. INTRODUCTORY. 1. Botany is the name of the science of the vegetable kingdom in general; that is, of plants. 2. Plants may be studied as to their kinds and relationships. This study is Systematic Botany. An enumeration of the kinds of vegetables, as far as known, classified according to their various degrees of resemblance or difference, constitutes a general System of plants. A similar... more...