The Complete Work of Charles Darwin Online

RECORD: Darwin, C. R. n.d. Dry a utricle & see if secretion viscid. CUL-DAR59.1.149. 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 and William Huxley Darwin. The volumes CUL-DAR 54-61 contain material for Darwin's book Insectivorous plants (1875).

[149]

Utricularia

Dry a utricle & see if secretion viscid — this perhaps wd suffice to keep out water & kill insects — No

Is it acid? No

Is it acid after albumen?

Does sack close.

Valves semicircular, ie not flat— the 2 long branched bristle rise near very distnct hinge

Direction of vascular bundles?

Is the leaf with 2 edges united?

or depressed leaf.

/over

[149v]

In 1 pod 3 Cypris — Cyclops & remnant of other Crustacean?

& grains of quartz — prove how easily anything enters — does it not show valve sometime quite open—

Bladders very transparent so not deter creature entering

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