RECORD: Darwin, C. R. [1878].09.16 Celery / Draft of Forms of flowers. CUL-DAR209.7.31. Edited by John van Wyhe (Darwin Online, http://darwin-online.org.uk/)

REVISION HISTORY: Transcribed by Christine Chua and edited by John van Wyhe 8.2022. 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-DAR209.7-8 contain notes on heliotropism (phototropism) for Darwin's book Movement in plants (1880).


[31]

Celery

Sept. 16th window & muslin Blinds— 2 additional n over celery— In latter case only trace shadow from pencil

[data not transcribed]

[31v]

[one word excised] of their genera which is closely allied to the last.

Oldenlandia from India, which is [illeg] likewise heterostyled, as was observed [illeg] long ago by Wight & [illeg] to be the case with some of the species. The The pistil in the long-styled flower is longer by about a quarter of its own length, & the stamens shorter in by about as the same [illeg] proportion, compared with proportion, than the corresponding organs in the short-styled flowers. In the latter the anthers are longer; & the different stigmas decidedly longer & apparently thinner than in the other long-styled form. Owing to the state of the specimen, I could not decide whether the stigmata papillæ were longer in the one form than the other. The pollen-grains, distended with water, from the short-styled flowers are to thosefrom the long-styled, as 100 to 78 in diameter, as deduced from the [ median] mean of the measurements of each kind made by my son Francis.)

[Forms of flowers, pp. 132-3: "Mr. J. Scott sent me from India dried flowers of a heterostyled species of this genus, which is closely allied to the last.
The pistil in the long-styled flowers is longer by about a quarter of its length, and the stamens shorter in about the same proportion, than the corresponding organs in the short-styled flowers. In the latter the anthers are longer, and the divergent stigmas decidedly longer and apparently thinner than in the long-styled form. Owing to the state of the specimens, I could not decide whether the stigmatic papillæ were longer in the one form than in the other. The pollen-grains, distended with water, from the short-styled flowers were to those from the long-styled as 100 to 78 in diameter, as deduced from the mean of ten measurements of each kind."]


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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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