Sexual selection mediated by animal pollinators can potentially drive dimorphism in plant populations with unisexual flowers. Yakimowski et al. compare variation in floral traits between populations of Sagittaria latifolia with combined versus separated sexes. Male flowers are larger than females but the pattern is reversed for daily display size, probably because of improved pollen dispersal associated with prolonged male function. Both patterns are predicted signatures of sexual selection.
Do male and female flowers of Catasetum orchids differ in floral scent chemistry and emission?
‘Two households, both alike in dignity’ is famously the opening line of Romeo & Juliet. How alike houses Montague and Capulet actually are is debatable, but what is clear is that plants with two households can be...
Across the plant kingdom, there is an extraordinary diversity of flower forms, many of which are related to variation in the morphology and arrangement of reproductive organs. To prevent self-pollination, plants have...
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William Salter
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