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Adaptive significance of flexistyly in Alpinia blepharocalyx (Zingiberaceae): a hand-pollination experiment.
Differential maturing of male and female organs in Alpinia blepharocalyx is sufficient for selfing avoidance, obviating the need for style movements, and simultaneous self- and inter-morph cross-pollination indicated that outcross-pollen is more competitive than self- pollen on receptive stigmas.
Functional implications of the staminal lever mechanism in Salvia cyclostegia (Lamiaceae).
Though the intact flowers demand a long handling time for pollinators, the reversible staminal lever is of advantage by promoting dispersal of pollen and thus the male function.