From Alphonse de Candolle 28 September 1869
Summary
Reports on the differences of growth and development of plants of three species grown at Geneva from seed collected at different localities. Forwards seed for CD to plant and observe differences in development.
Carl Linsseer has published a memoir on the times of flowering, foliation, etc. of diverse species in different parts of Europe [Mem. Acad. Imp. Sci. St.-Pétersbourg 7th ser. 11 no. 7 (1868)] and concludes that the northern forms are more forward and that this is hereditary. AdeC’s experiments carried out on annuals, show only the effects of heredity; probably the direct action of physical conditions affects development, at least in perennial species.
Author: | Alphonse de Candolle |
Addressee: | Charles Robert Darwin |
Date: | 28 Sept 1869 |
Classmark: | DAR 261.11: 32.i (EH 88206083) |
Letter no: | DCP-LETT-6915 |
letter | (1) |