From:
Charles Robert Darwin
To:
Joseph Dalton Hooker
Date:
21 Nov [1860]
Source of text:
DAR 115: 75
Summary:
Welcomes JDH home from Middle Eastern expedition.
Contributor:
Darwin Correspondence Project
Welcomes JDH home from Middle Eastern expedition.
Has found some funny evidences of transmutation in Cliffortia. Sketches gradual passage "from very unlike to same" – e.g., from three-leafed form to two-leafed.
Encourages CD’s work in vegetable physiology.
Ascending the Lebanon JDH noted limits of plant distribution as CD requested: lower limits of a genus sharper than upper. Sharpness of boundaries related to a plant’s moisture requirement.
Impressed by "sporadic" distribution at the Jardin des Plantes in Paris.
Preparing new edition of Origin and asks for JDH’s corrections and criticisms.