From H. C. Watson 23 February [1858]
Summary
Believes that botanists tend to mark more varieties in large than in small genera, but notes that where many varieties of a species exist these varieties may well be passed over, whereas similar varieties of another species which are fewer in number may well be recorded.
| Author: | Hewett Cottrell Watson |
| Addressee: | Charles Robert Darwin |
| Date: | 23 Feb [1858] |
| Classmark: | DAR 98: A21–2 |
| Letter no: | DCP-LETT-2223 |
