RECORD: Darwin, C. R. n.d. Cephalanthera grandiflora. CUL-DAR70.75. Edited by John van Wyhe (Darwin Online, http://darwin-online.org.uk/)
REVISION HISTORY: Transcribed by Christine Chua and edited by John van Wyhe 8.2021. 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-DAR70 contains material for Darwin's book Orchids (2d ed. 1877).
[75]
May 27 /62/ Cephalanthera grandiflora
No nectar. Terminal portion of labellum with crest fronted with globular papillae of average colour: these pass into 3 orange ridges, transversely wrinkled; then become pale at hinge & in cup there are several more darker orange ridges. I gathered 9 flowers lately open - 5 were gnawed & had pollen broken down - 2 gnawed with pollen not broken - 2 not gnawed & with pollen not broken -the gnawing is always where middle ridge passes into the terminal fronted surface; in one case middle ridge further down gnawed. An insect here gnawing would have its head in front of pollen. I never saw ridge in cup gnawed; the cup functionless
The lower sepals become wider apart than represented in drawing, at least in sucking places;
[75v]
this is only inaccuracy in [illeg] drawing.
The test of Labellum like that of the lab of VandeƦ
May 28th It is all a mistake about the gnawing the exterior coloured cells often deficient at this point in quite young buds with unopened anthers - No nectar in any flowers. Pillars of pollen project so far from anther over stigma, that I think must oftener fall on stigma than I supposed.
Citation: John van Wyhe, ed. 2002-. The Complete Work of Charles Darwin Online. (http://darwin-online.org.uk/)
File last updated 25 September, 2022