RECORD: Darwin, C. R. and Elizabeth Darwin. n.d. [Abstract of Fritz Müller's paper in Botanische Zeitung, p. 151.] CUL-DAR109.A92-A93. Transcribed by Christine Chua, edited by John van Wyhe (Darwin Online, http://darwin-online.org.uk/)

REVISION HISTORY: Transcribed by Christine Chua and edited by John van Wyhe 1.2021. 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 volumes CUL-DAR108-111 contain material for Darwin's book Forms of flowers (1877).


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[92]

Botanische Zeitung

1870 Page 151. F Muller

I recently paid attention to the separate sex of a Chamissoa, whose flowers (Fig A and B) are related more closely to Hermaphroditism than in any other diöeischen plants to my knowledge.

At first I held the plant to be dimorphic.

Bur in a closer examination it was proved that the anthers of the

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langgriffligen longstyled (female) plants are entirely without pollen, and that the division of to its genera

narbenschenkel of the shortstyled kurzgriffligen (male never more asunder. The remarkable thing is that not only the narbenpapillen of that short styled plant i.e male are partly well developed, but also that the ovaries contained ovule, which I examined under the microscope & found different in nothing from the female plant, but which of course, because of the closely [laying] narbenschenkel can never be fertilized.

Chamissoa (Amaranthaceae Springel)

Postscript of the 17th of April

In a male plant of Chamissoa I saw yesterday some flowers whose short styles had gaping

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Schenkel, and that such flowers are fertile is shown by some fruit on the same plant.


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