RECORD: Darwin, C. R. n.d. Sterility of Plant from conditions / Summary for Hybrid Chapter. CUL-DAR205.7.57. Edited by John van Wyhe (Darwin Online, http://darwin-online.org.uk/)

REVISION HISTORY: Transcribed by Christine Chua and edited by John van Wyhe 3.2023. RN1

NOTE: See record in the Darwin Online manuscript catalogue, enter its Identifier here. Reproduced with permission of the Syndics of Cambridge University Library and William Huxley Darwin. The volume CUL-DAR205.7 contains notes on hybridism, sterility and pigeons.


[57]

Sterility of Plants from conditions compared with Hybrids

(Summary for Hybrid Chapt)

innumerable flowers— Gærtner Bastard p. 369 flowers shanking off Kolreuter my MS abstract p. 30 — fruit or capsule perfected as in Lilacs di [illeg] & fruit with no seed

Male organs p 378 Bastarderzeugung more often affected than females; use if much of contabescence be due to conditions

effect of in doubling, fruit, suckers large roots.—

graduated sterility, as in Hybrids

In doubling male organs fruit affected. Gærtner Bastard p. 363

Gærtner 357. 360 — on male & female organs not equally affected— Think on this

(over

[57v]

We cannot tell in the least which animal or plant will have fertility affected by [illeg] changes of condition induced by captivity, so we cannot tell in least, which will be rendered sterile.—

[bottom of page:] 14. numbers of seeds


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Citation: John van Wyhe, ed. 2002-. The Complete Work of Charles Darwin Online. (http://darwin-online.org.uk/)

File last updated 8 May, 2023