[48]

Drosera

Annals & Mag. of Nat. Hist (3rd series) vol XI p. 188.

An abstract of Dr F Cohn on the contractile tissue of plants.

Send to Royal (Yes) M

& Nitschke for gradation of t. not Hairs as quoted by Warming

[Cohn, Ferdinand Julius. 1863. On the contractile tissue of plants. Annals and Magazine of Natural History 3d ser. 11: 188-202. Insectivorous plants, p. 256: "Prof. Cohn, in his interesting paper* on the movements of the stamens of certain Compositae, states that these organs, when dead, are as elastic as threads of india-rubber, and are then only half as long as they were when alive. He believes that the living protoplasm
* 'Abhand. der Schles. Gesell. für vaterl. Cultur,' 1861, Heft i. An excellent abstract of this paper is given in the 'Annals and Mag. of Nat. Hist.' 3rd series, 1863, vol. xi. pp. 188-197.
within their cells is ordinarily in a state of expansion, but is paralysed by irritation, or may be said to suffer temporary death; the elasticity of the cell-walls then coming into play, and causing the contraction of the stamens."]

[48v]

p 192

194

198

201 The sarcode