Lack of strong selection pressures maintains wide variation in floral traits in a food-deceptive orchid.

Abstract excerpt

BACKGROUND AND AIMS: Angiosperms vary remarkably in traits such as colour, size and shape of flowers, yet such variation generally tends to be low within species. In deceptive orchids, however, large variation in floral traits has been described, not only between but also within populations. Nonetheless, the factors driving variation in floral traits in deceptive orchids remain largely unclear. METHODS: To...

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