RECORD: Darwin, C. R. [1874].10.25. Long-Head. CUL-DAR57.139. Edited by John van Wyhe (Darwin Online, http://darwin-online.org.uk/)

REVISION HISTORY: Transcribed by Christine Chua and edited by John van Wyhe 1.2023. 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 54-61 contain material for Darwin's book Insectivorous plants (1875).


[139]

Oct. 25. Long-Head — I shd say above a dozen cells at bending place

In t. I can see no difference in thickening of transverse & long cell-walls

Cells in to of 2d row 23-25 divisions of micrometer — on disc one of longest cells & manyvery much smaller only about 13 — long — I may say on average more more than twice as long — or only much more elongated "absolutely & relatively"

I can see on disc no difference in end walls & sides in thickness

Cells radiate from base of exterior rows so that the radiation comes very near each other & may account for lateral intercommunication there is [illeg] of cells over base of central t in Cells — certainly radiate from petiole.

All pedicels flattened — more so exteriorly

(Centre to 4 or 5 rows on one face

I had better say 5 rows, as near as I cd judge

6 rows in both exterior t


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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 18 May, 2023