RECORD: Darwin, C. R. 1846. Abstract of Hort. Journal. Vol. I . p. 67. 1846. CUL-DAR205.1.46. 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-DAR205.1 contains notes on rudimentary organs.


46

(1) Hort. Journal. Vol. I . p. 67. 1846

Pterostigma grandiflorum (a Scroph) has 2 perfect stamens under upper lip, & 2 stunted one under lower lip, when in latter an additional lobe appears, it is accompanied by additional sterile stamen.

Rudiments & Correlation

annotation 02

p. 115. Lindley on Wild state of Maize - Mr. M. Floy says planted it & observed a grain or two but little covered with husks & the produce of these almost like one common corn    showing that 2 or 3 years would bring it into cultivated state  Lindley compares fact with carrots by Vilmorin see Hort. Trans new Series Vol II. p. 348) - Woodcuts of wild & common, & externally very unlike from the husks entirely covering the grain in wild state — grains similar - in tame corn "its chaffs are reduced to little membranous half-transparent scales, which are entirely concealed by th protruding grains" (might be called abortive) How strange that cultivation shd have this effect

46v

In tame, centre of ear has become large & firm, whilst chaff has diminished.

Width of centre of ear

 

Grains

Length of Chaff

Wild 4 lines

4 lines

11 lines

Cultivated 9 -

4

2 -

 


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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 25 September, 2022