From:
Charles Robert Darwin
To:
George Bentham
Date:
18 Dec [1857]
Source of text:
Royal Botanic Gardens, Kew (Bentham Correspondence, Vol. 3, Daintree–Dyer, 1830–1884, GEB/1/3: f. 700a)
Summary:
Thanks GB for his answers [to 2184], which were as explicit as he expected. Cucubalus viscosus and italicus are extremely sterile together; all other forms extremely fertile. Other instances of infertility found by Gärtner.
Contributor:
Darwin Correspondence Project