... themselves up in an in-curved spire, while at the same time they form longitudinal creases, and look as though they were gathered in, or wrinkled;...but no sooner does evening return than the wrinkles disappear, the petals become smooth, uncurl themselves, and fall back upon the calyx, and ... — Wild Flowers, An Aid to Knowledge of Our Wild Flowers and - Their Insect Visitors - - Title: Nature's Garden • Neltje Blanchan
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