The Complete Work of Charles Darwin Online

RECORD: Darwin, C. R. n.d. Abstract of Nägeli, Beiträge Zur Wissenschaftlichen Botanik. CUL-DAR45.150. Edited by John van Wyhe (Darwin Online, http://darwin-online.org.uk/)

REVISION HISTORY: Transcribed by Christine Chua and edited by John van Wyhe 10.2022. RN1

NOTE: See record in the Darwin Online manuscript catalogue, enter its Identifier here. Reproduced with permission of the Syndics of Cambridge University Library William Huxley Darwin. The volume CUL-DAR45 contains notes for Natural selection chap. 4 'Variation under nature'.

[150]

Beitrage zur Wissenschaft Botanik Carl Nägeli 1858

S. 40 In young shoots the position of leaves, or angle, often different from in mature stems

S. 41. Leaves sometimes in whorl below & spiral above & reverse; also under in abnormal circumstances change from one to another.

,42 young leaf-buds vary as much as 10° either above or below their proper angle of divergence; supposes at earliest formation, before distinguishable are never regular.—

45 The position of Spiral vessels to a certain extent independent of position of leaves

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