RECORD: Darwin, C. R. n.d. Abronia umbellata. CUL-DAR209.6.6. Edited by John van Wyhe (Darwin Online, http://darwin-online.org.uk/)

REVISION HISTORY: Transcribed by Christine Chua and edited by John van Wyhe 12.2022. 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 volume CUL-DAR209.6 contains materials for Darwin's book Movement in plants (1880).

Notes for Movement in plants. Text F1325. Abronia umbellata or Pink Sand Verbena is a small flowering annual plant native to western North America. It was first named and described by Lamarck in 1793.


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(a) Abronia umbellata. Nyctagineæ

Rudiment of 2d. cot green— covered with glands like large cot. but a & with the minute laminæ parallel to it, but with no distinct petiole — whole Projects only of inch. — See sketch by George. [sketch]

Comes out of ground in an arch, but with the cot. upturned & in seed-coats contact of with upper part of hypocoty— Upper surface of blade of the true cot. involuted & enclosing bag of farinaceous albumen & at base of involution this rudimentary cot is seated.— Before seed leaves ground, the rudiment is orbicular, but even at this

X early age is covered with glands. [annotated sketch]

It is the hypocoty which is arched, but instead of dragging dragging up dependent Cots, I believe the apex of Cot. comes up parallel to upper part of Hypocoty

Summit of radicle or base of hypocoty so much enlarged, before the Cot fully developed, & even much so afterwards as may be seen in sketch, that it form a corm, as with Cyclamen, & one may suspect this large stock of prepared nutriment is connected with only 1 Cot— having developed.— How in R. ficaria! see Dict. Class.


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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 14 January, 2023