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Selfing in an annual Euphrasia The tiny alpine annual Euphrasia minima has a breeding system promoting self-fertilization. The stigma and anthers are ripe at the same time. The style is bent back and the receptive stigma is positioned below the anthers. Pollen falling down causes selfing.
1 - Euphrasia minima (Scrophulariaceae) (after Hess 2001) |
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29 August 2011 |
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