RECORD: Darwin, C. R. 1861.04.09. I have been looking at that Fumaria dingy purple with one long nectary & one rudimentary. CUL-DAR76.B17. Edited by John van Wyhe (Darwin Online, http://darwin-online.org.uk/)

REVISION HISTORY: Transcribed by Christine Chua and edited by John van Wyhe 12.2022. 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 volumes CUL-DAR 76-79 contain material for Darwin's book Cross and self fertilisation (1876).


[17]

Ap 9th 1861. I have been looking at that Fumaria dingy purple with one long nectary & one rudimentary — (the latter alone white)

Plenty of sweet nectar in the long one; none in short. —

Pistil curved to long-nectary side. — I fer Here is beautiful contrivance, if hood be forced off, as Bee would in sucking, it keeps wide open as long as open & when it springs back it beautifully encloses, as at first, the anthers — It can be pushed the other way with difficulty, but then there is this marked difference the hood does not keep open; so that when loosed it does not enclose pistil & stamen, which are thus no longer protected.

[in margin:] Is it not Corydalis tuberosa?

[17v]

Mem. pistil of C. lutea does remain unprotected & exposed but then it lies securely under upper petal?? I think

The flower stems of the purple grew nearly upright; & the flowers are placed nearly transversely to fl. stem — The long nectary is uppermost; the lip of corolla short & turned back at nearly right ∟' to tube; so that if hood did not reencloses pistil & stamen, they wd be fully exposed; when pushed to opposite side, which can hardly be effected without tearing the corolla, (& left outside they wd be exposed; but as this never happens not worth mentioning.)

Mr Oliver believe Corydalis solida (= C. bulbosa)1

1 Daniel Oliver (1830-1916), botanist; librarian in the herbarium of the Royal Botanic Gardens, Kew, 1860-1890.


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

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