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From Asa Gray   4 August 1862

Summary

Gives J. T. Rothrock’s observations on the structure and fertility of the two forms of Houstonia. Mentions his own observations on Rhexia virginica and Gymnadenia tridentata.

Author:  Asa Gray
Addressee:  Charles Robert Darwin
Date:  4 Aug 1862
Classmark:  DAR 110 (ser. 2): 67–9
Letter no:  DCP-LETT-3679

From G. C. Oxenden   4 August [1862?]

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Summary

Finds many beautiful Epipactis specimens.

Author:  George Chichester Oxenden
Addressee:  Charles Robert Darwin
Date:  4 Aug [1862?]
Classmark:  DAR 173: 57
Letter no:  DCP-LETT-3680

From Margaret Susan Wedgwood   [before 4 August 1862]

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Summary

Proportions of different forms of Lythrum.

Author:  Margaret Susan Wedgwood; Margaret Susan Vaughan Williams
Addressee:  Charles Robert Darwin
Date:  [before 4 Aug 1862]
Classmark:  DAR 181: 64
Letter no:  DCP-LETT-3681

To K. E. S., L. C., and M. S. Wedgwood   4 [August 1862]

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Summary

Their enumeration [of forms of Lythrum?] is invaluable. He will write later to explain what he is trying to prove about Lythrum through laborious crosses.

Asks for flowers of both forms of Hottonia to measure pollen and compare stigmas.

Author:  Charles Robert Darwin
Addressee:  Katherine Elizabeth Sophy (Sophy) Wedgwood; Margaret Susan Wedgwood; Margaret Susan Vaughan Williams; Lucy Caroline Wedgwood; Lucy Caroline Harrison
Date:  4 [Aug 1862]
Classmark:  DAR 185: 127
Letter no:  DCP-LETT-4373