From William Herbert to J. S. Henslow 5 April 1839
Summary
Replies to CD’s questions on plant hybridisation and laws of inheritance. Rejects predominant transmission of characters by established forms. Males show predominance, but congeniality of parents’ constitution to climate and soil more important. No correlation between hybridisation and variability, cultivation, and geographical distribution. Rejects reversion.
Describes experiments in Hippeastrum in which pollen from another species proved more fertile than plant’s own pollen.
Did not intend to say that crossing is inimical to fertility.
| Author: | William Herbert, dean of Manchester |
| Addressee: | John Stevens Henslow |
| Date: | 5 Apr 1839 |
| Classmark: | DAR 185: 63 |
| Letter no: | DCP-LETT-503 |
Matches: 1 hit
To J. S. Henslow 23 [August or September 1855]
Summary
Asks JSH to identify an umbellifer.
Describes his efforts to compare number of seeds of wild and cultivated plants.
Asks that more wild celery be collected and seeds counted. Seeks to verify whether "most typical form produces most seed" and whether cultivation lessens fertility.
| Author: | Charles Robert Darwin |
| Addressee: | John Stevens Henslow |
| Date: | 23 [Aug or Sept] 1855 |
| Classmark: | DAR 93: A112–13 |
| Letter no: | DCP-LETT-1748 |
Matches: 1 hit
| letter | (2) |
| Henslow, J. S. | (2) |
| Darwin, C. R. | (1) |
| Herbert, William | (1) |
