Botany for young people. How plants behave: how they move, climb, employ insects to work for them, &c (1872)
Gray, Asa, 1810-1888 · New York, American Book Company · leaf 16
10 HOW PLANTS MOVE, CLIMB, easy to cultivate in a hot-house, or even in an open garden during the heat of summer. The leaves are of only three leaflets (Fig. 2), a large one at the end of the leafstalk, accompanied by a pair of small leaflets, one on each side. The … Fig. 2. Desmodium gyrans. nor do we very well know how they are ef- fected. The attempts that have been made to explain how the motion is brought about need not be considered here. However done, it is clear that the leaves move by their own act , — in the one case responding to a touch ; in the…
Botany
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