From John Scott 3 March 1863
Summary
JS criticises natural selection as based on an innate "continuously watchful selective principle".
Seeks seed of wild Rocky Mountain maize.
What is CD’s view on origin of maize?
Seeks information on self-sterility of Passiflora and Lobelia.
Weeping habit of trees.
Intended to say bisexual plants presented more established varieties than unisexual, not that they are more variable.
Explains his opinion that homomorphically fertilised Primula will produce only their own form. Is trying homomorphic crosses with different coloured Primula varieties.
Asks to read Asa Gray’s 2d review of Orchids.
Has finally successfully fertilised Gongora, but it was done by unnatural means.
Author: | John Scott |
Addressee: | Charles Robert Darwin |
Date: | 3 Mar 1863 |
Classmark: | DAR 108: 179 |
Letter no: | DCP-LETT-4021 |
From John Scott 21 March [1863]
Summary
Thanks for CD’s answers on Passiflora
and Asa Gray review.
Has observed gradation of sterility in Oncidium species.
Has observed rostellar germination and fertilisation in Laelia. The latter was prevented in Bletia by covering the stigma with plaster of Paris.
Gongora atropurpurea capsules are swelling.
Author: | John Scott |
Addressee: | Charles Robert Darwin |
Date: | 21 Mar [1863] |
Classmark: | DAR 177: 85 |
Letter no: | DCP-LETT-4055 |
letter | (2) |
Darwin, C. R. | (2) |
Scott, John | (2) |