RECORD: Darwin, C. R. n.d. Give the case of blunder after waste of pollen. CUL-DAR48.A7. Edited by John van Wyhe (Darwin Online, http://darwin-online.org.uk/)

REVISION HISTORY: Transcribed by Christine Chua and edited by John van Wyhe 9.2021. 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-DAR48 contains notes for Natural selection chap. 8 'Transitions of Organs'. Notes on bees' cells for origin of species theory.


[A7]

Give the case of blunder after waste of pollen in dioicous plants - Give Dichogamous case of Sprengel of waste of pollen in 1 male yet I think only one or 2 seeds to each truss) & I think in each ovary there are several ovules?

"Oh, it will be said, for Hive & Humble-bees" then why so many thousands of other insects killed by sticky scale in buds.

In Art. Avortement in Dict. Class of Hist. [illeg] will be final account of abortion of ovules

[A7r]

Horse-chesnut May 21. Early March flowering dry pollen elliptical 9/000 long (Weak eye-piece)

1/4 tint closer

After water spherical

some mainly transparent

some brown matter within

Mostly white matter within 7 to 8/0000 in diameter

I looked at scores of flowers on several trees all males, yet with pollen bursting on some anthers only male flowers at base of each side stalk

In buds female flowers pistil projects beyond anthers in male beneath anther [illeg] Anther same appearance on both sexes - Even in bud stigma withered in male, no style in male.


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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 25 September, 2022