RECORD: Darwin, C. R. & Francis Darwin. 1877.10.09-10. Primula sinensis / Draft of Forms of flowers. CUL-DAR209.4.347-350. Edited by John van Wyhe (Darwin Online, http://darwin-online.org.uk/)

REVISION HISTORY: Transcribed by Christine Chua and edited by John van Wyhe 9.2022. 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-DAR209.4 contains materials for Darwin's book Movement in plants (1880).


[347]

Primula Sinensis

Cotyledon.

Oct 9th

Copied by Frank

Fig. 22 no lettering

(a first copy must be made)

[348]

Oct 10' Morning

Col. of P. Sinensis

Diagram 2. Oct 8

[349 and 350]

Fig 22

Primula Sinensis Fig 22

(natural Scale)

Primula Sinensis: Fig 22 composite movement [Circ] of hypocotyl & cotyledons from 8° 40 a.m to 10°. 45' P.m., traced on vertical glass— Seedling Movement of bead magnified 26 times.

[350v]

[text excised]. If there exist plants, the distinct individuals of which consist of hermaphrodites & males, there might be distinguished as andro-diœcious. But after making enquiries from several Botanists I can hear of no such cases. Lecoq, however, states *(w, w) that but without entering into full details, that some plants of Calthia palustris produce only male flowers, & that these plants live mingled with the hermaphrodites. The rarity of these such cases as this last one is remarkable, as the presence of hermaphrodite & of male

[Forms of flowers, pp. 12-13: "Again there are plants which produce hermaphrodite and male flowers on the same individual, for instance, some species of Galium, Veratrum, &c.; and these might be called andro-monœcious. If there exist plants, the individuals of which consist of hermaphrodites and males, these might be distinguished
* 'Géographie Botanique,' tom. v. p. 367.
as andro-diœcious. But, after making inquiries from several botanists, I can hear of no such cases. Lecoq, however, states,* but without entering into full details, that some plants of Caltha palustris produce only male flowers, and that these live mingled with the hermaphrodites. The rarity of such cases as this last one is remarkable, as the presence of hermaphrodite and male flowers on the same individual is not an unusual occurrence; it would appear as if nature did not think it worth while to devote a distinct individual to the production of pollen, excepting when this was indispensably necessary, as in the case of diœcious species."]


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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 10 October, 2022