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To George Bentham 1 December [1857]
Summary
Thanks GB for his help on naturalised plants; comments on spreading of plants.
Wants to quote GB on the names of species and varieties of Silene on which C. F. von Gärtner experimented.
Thinks GB will be disappointed in his book [Natural selection]. "It will be grievously too hypothetical."
| Author: | Charles Robert Darwin |
| Addressee: | George Bentham |
| Date: | 1 Dec [1857] |
| Classmark: | Royal Botanic Gardens, Kew (Bentham Correspondence, Vol. 3, Daintree–Dyer, 1830–1884, GEB/1/3: ff. 682–3) |
| Letter no: | DCP-LETT-2177 |
To George Bentham 15 December [1857]
Summary
For his studies on fertility of crosses, asks GB to mark a list of pairs of Cucubalus as to whether they are varieties of the same species, or distinct species.
| Author: | Charles Robert Darwin |
| Addressee: | George Bentham |
| Date: | 15 Dec [1857] |
| Classmark: | Royal Botanic Gardens, Kew (Bentham Correspondence, Vol. 3, Daintree–Dyer, 1830–1884, GEB/1/3: f. 681 |
| Letter no: | DCP-LETT-2184 |
To George Bentham 18 December [1857]
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.
| Author: | Charles Robert Darwin |
| Addressee: | George Bentham |
| Date: | 18 Dec [1857] |
| Classmark: | Royal Botanic Gardens, Kew (Bentham Correspondence, Vol. 3, Daintree–Dyer, 1830–1884, GEB/1/3: f. 700a) |
| Letter no: | DCP-LETT-2189 |
