RECORD: Darwin, C. R. [1877].07.23-08.04. Papaver bracteatum or oviculata / Gilliflower. CUL-DAR66.120. Edited by John van Wyhe (Darwin Online, http://darwin-online.org.uk/)

REVISION HISTORY: Transcribed by Christine Chua and edited by John van Wyhe 3.2023. 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 volume CUL-DAR66 contains notes on 'bloom'. Francis Darwin explained: "His researches into the meaning of the 'bloom,' or waxy coating found on many leaves, was one of those inquiries which remained unfinished at the time of his death. He amassed a quantity of notes on the subject". LL3: 339. See an Introduction to these folders by Christine Chua & John van Wyhe.


[120]

July 23, 5˚ P.m.

Papaver bracteatum or oviculata: pods beautifully dry after heavy rain. — Pods green, full-sized 4 cleaned & 4 uncleaned with sponge & tepid water, with about an inch of peduncle left; to be syringed

(4 cleaned & uncleaned left dry

(July 26' 7˚ P.m. The cleaned (left dry) now look yellower than the others or uncleaned

(27th 8˚ now all look equally yellow)

29th & 30th & 31' The cleaned now look decidedly browner than the uncleaned.)

(July 29th 8˚ One of the cleaned & syringed Heads rotted on top.

(Aug 1' & 2d 8 The cleaned now all very dark brown, conspicuous difference from uncleaned 2 of which are green & 2 pale brown.) (a)(a)

July 23d — 5˚. 30' Pm

Gilliflower — green, large pods only spotted with water after heavy rain (I believe hairy)

6 sponged & 6 not sponged to be syringed

Aug 2d 8 The sponged pods are now covered spotted with blackish mist fungus & thus differ from the others. F. find that black marks are merely decay.

(Back)

July 29' Plate so wet put both all on Blotting Paper

[120v]

(aa) August 4th 8˚ The 3 remaining Poppy black & quite rotten; the 4 with bloom when cut quite fresh.—

Aug 2d pods most thickly coated by adpressed— attached by middle & pointed towards both ends of pod. [sketch]

The hairs have surface covered by small rounded projections — makes a splendid defence against water.)

(Aug 4 The cleaned ones look much greyer & are more shrunk;) thrown away.)


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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 5 July, 2023