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From John Murray   [1 July – 23 August 1862]

Summary

Account of Orchids.

Author:  John Murray
Addressee:  Charles Robert Darwin
Date:  [1 July – 23 Aug 1862]
Classmark:  DAR 171: 525
Letter no:  DCP-LETT-3635F

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To Asa Gray   1 July [1862]

Summary

Thanks for notes on Cypripedium and Platanthera hookeri, which is really beautiful and quite a new case.

His son, George, has been observing the insect fertilisation of orchids.

CD has been crossing peloric flowers of Pelargonium, but doubts he will get good results with respect to sterility of hybrids.

Rhexia glandulosa does not appear to be dimorphic. Lythrum is trimorphic.

Author:  Charles Robert Darwin
Addressee:  Asa Gray
Date:  1 July [1862]
Classmark:  Gray Herbarium of Harvard University (69)
Letter no:  DCP-LETT-3634

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  • B. Baillière. Orchids : On the various contrivances by which British and foreign orchids are fertilised by insects, and on the good effects of intercrossing. By Charles Darwin. London: John Murray. …