Century Dictionary and Cyclopedia
- In botany, characteristic of, affected by, or exhibiting nyctitropism.
- adj. botany Turning or bending at night into special positions.
GNU Webster's 1913
- adj. (Bot.) Turning or bending at night into special positions.
- From Ancient Greek, meaning "night-turning". (Wiktionary)
“From their vertical nyctitropic position the leaves of this Phyllanthus might return to horizontality, traversing 90 deg, in two ways, either to their own or to the opposite side of the branch; on the latter way no rotation would be required, while on the former each leaf must rotate on its own axis in order that its upper surface may be turned upwards.”
“One species of Phyllanthus takes up in sunshine the nyctitropic attitude of another species.”
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