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To J. D. Hooker   8 [June 1863]

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Summary

Sends Asa Gray letter to JDH. Gray’s "Coolness about England and U. S. beats anything".

John Scott’s difficulties at Edinburgh Botanic Garden.

JS’s paper on Primula crossing experiments.

Sends MS note about closing of stigma in orchids being dependent on affinity of pollen and independent of protusion of pollen-tubes.

Author:  Charles Robert Darwin
Addressee:  Joseph Dalton Hooker
Date:  8 [June 1863]
Classmark:  DAR 115: 158
Letter no:  DCP-LETT-4207

From G. H. K. Thwaites   8 June 1863

Summary

Dimorphism in Linum.

Situation in some of the lower Algae is analogous to that in phaenogams. In some, conjugation occurs between separate filaments, in others between cells of same filament.

Forwards a letter from S. O. Glenie enclosing specimens of Cassia fistula which show the two forms of the anthers.

Author:  George Henry Kendrick Thwaites
Addressee:  Charles Robert Darwin
Date:  8 June 1863
Classmark:  DAR 178: 121–2
Letter no:  DCP-LETT-4208
Document type
letter (2)
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Date
letter