Search: Darwin Correspondence Project in contributor 
1860-1869::1860::09 in date 
letter in document-type 
Sorted by:

Showing 4142 of 42 items

From:
Charles Robert Darwin
To:
Daniel Oliver
Date:
24 [Sept 1860]
Source of text:
DAR 261.10: 22 (EH 88206006)
Summary:

Admires DO’s correlation of spiny tree species and dry hot climate. CD suggests that spines, like strange aroma of desert plants, protect against browsing where there are few plants.

Fragrance and unisexuality.

Dimorphism in Viola tricolor.

Contributor:
Darwin Correspondence Project
From:
Charles Robert Darwin
To:
Daniel Oliver
Date:
27 [Sept 1860]
Source of text:
DAR 261.10: 23 (EH 88206007)
Summary:

Thinks he has worked out simple mechanism of movement in Drosera. Believes he is correct that gum has no effect.

Thanks for Trécul paper ["Organisation des glandes pédicellées de la feuille du Drosera rotundifolia", C. R. Hebd. Acad. Sci. 40: 1355–8; Ann. Sci. Nat. (Bot.) 3d ser. 3: 303–11].

Chloroform paralyses plants in 30 seconds.

Contributor:
Darwin Correspondence Project