The Complete Work of Charles Darwin Online

RECORD: Darwin, C. R. [1874].09.26-29. [Utricularia - annotated diagrams]. CUL-DAR59.2.71-72,74. Edited by John van Wyhe (Darwin Online, http://darwin-online.org.uk/)

REVISION HISTORY: Transcribed by Christine Chua and edited by John van Wyhe 11.2021. 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 volumes CUL-DAR 54-61 contain material for Darwin's book Insectivorous plants (1875).

[71]

[annotated diagram]

Sept 26

Best view no orifice

Clearly Hollow

(z)

x (tissue changes in another spec. seen laterally)

a Valve, turned inwards

about 70 divisions long

[72]

Sept 29th Orifice on concave side of young branches - all bladders well developed in winter buds. - orifice near footstalk of bladder.

When measured with 2d power & tube drawn out bladder hollow when 60 divisions long, & with valve seen dipping into nearly middle of valve - valve continuation of dorsal side

Saw 2 Bladders of above size with 2 incipient antennae certainly unequal ie. 60 divisions with 2d object glass.

[72v]

2d spec

[annotated diagrams]

flattened on the plain

Hollow

[about] 105 [lines]

[2 words illeg]

From another not open as 2

orifice seen through bladder

[74]

I saw clearly lines between bases of Bifids. [sketch]

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