From:
Asa Gray
To:
Charles Robert Darwin
Date:
23 Sept 1856
Source of text:
DAR 165: 94
Summary:
Plants that are social in the U. S. but are not so in the Old World.
Distribution of U. S. species common to Europe.
Gives Theodor Engelmann’s opinion on the relative variability of indigenous and introduced plants and notes the effects of man’s settlement on the numbers and distribution of indigenous plants.
Contributor:
Darwin Correspondence Project
