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G. Muenchow, V. A. Delesalle, Patterns of Weevil Herbivory on Male, Monoecious and Female Inflorescences of Sagittaria latifolia, The American Midland Naturalist, Vol. 127, No. 2 (Apr., 1992), pp. 355-367
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Muenchow et al. (1992) studied this question.
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