The Complete Work of Charles Darwin Online

RECORD: Darwin, C. R. n.d. Pollen. CUL-DAR49.158. Edited by John van Wyhe (Darwin Online, http://darwin-online.org.uk/)

REVISION HISTORY: Transcribed by Christine Chua and edited by John van Wyhe 1.2022. 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-DAR49 contains notes for Natural selection chap. 3 on 'On...organic beings occasionally crossing' or dichogamy.

[158]

Pollen

Red Horse chesnut minute 1/850 oblong

Azalea with threads moderately small 1/500

Vinca not small 1/200

Common Sorrell about 2/3 of 1/1000 of mil

Euphorbia peplus (Monoecious) (Spurge) 1/1000

Poterium sanguisorba (do) (burnet) 1/700

Wheat - plenty of pollens grain spherical & angular of various sizes about} 1/375

Rhubarb in garden Shrewsbury 1/700 some gr only 1/1000

Wild Thyme about 1/750

Œnothera (with thread) about 1/200

Marvel of Peru (red) {said to have largest pollen} 1/200

Citation: John van Wyhe, ed. 2002-. The Complete Work of Charles Darwin Online. (http://darwin-online.org.uk/)