From Asa Gray [early August 1856]
Summary
Believes intermediate varieties are generally less numerous in individuals than the two states that they connect.
Discusses the difficulties of deciding what is the typical form of a species
and gives some opinions on the variability of introduced species compared with indigenous species.
| Author: | Asa Gray |
| Addressee: | Charles Robert Darwin |
| Date: | [early Aug 1856] |
| Classmark: | DAR 165: 93 |
| Letter no: | DCP-LETT-1934 |
To Asa Gray 24 August [1856]
Summary
Rarity of intermediate varieties.
Variability of introduced plants.
Ranges of plants common to Europe and U. S.
| Author: | Charles Robert Darwin |
| Addressee: | Asa Gray |
| Date: | 24 Aug [1856] |
| Classmark: | Archives of the Gray Herbarium, Harvard University (36) |
| Letter no: | DCP-LETT-1944 |
Document type
| letter | (2) |
Author
| Darwin, C. R. | (1) |
| Gray, Asa | (1) |
Addressee
| Darwin, C. R. | (1) |
| Gray, Asa | (1) |
Correspondent
| Darwin, C. R. | (2) |
| Gray, Asa | (2) |
