Nyctitropism

Nyc*tit"ro*pism

(?), n. [From Gr. ny`x, nykto`s, night + to turn.] (Plant Physiol.) The tendency of certain plant organs, as leaves, to assume special "sleeping" positions or make curvatures under the influence of darkness. It is well illustrated in the leaflets of clover and other leguminous plants.

 

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Sun 16th December 2018