From:
Charles Robert Darwin
To:
Asa Gray
Date:
26 June [1863]
Source of text:
Gray Herbarium of Harvard University (82)
Summary:
Thanks AG for references about phyllotaxy
and information on marriage laws.
Has been looking for dimorphism in Phlox and Euonymus.
Has observed the irritability of tendrils of Echinocystis with great interest. Was also struck by the rotating movements of the leading shoots, which he proposes to investigate.
Contributor:
Darwin Correspondence Project