The Complete Work of Charles Darwin Online

RECORD: Darwin, C. R. n.d. Delphinium nudicaule. CUL-DAR209.6.79. 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).

[79]

Ch II

The elongated petioles of cotyledon of several spec of Delphinium, especially of D. nudicaule refer to A. Gray [Test] are united into a solid column, appearing like a hypocotyl & even the cotyledons are sometime confluent.— And as the true hypocotyl is hardly at all developed the confluent & thus strengthened petioles break through the ground first & are always well arched in the case of D. nudicaule. The plumule & first true leaves are a little eccentric for they break out on one [illeg] at the base of the confluent petioles, & as there is no hypocotyl then have to break out of the ground & they do by the arching of the petiole.—

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