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Distribution of floral morphological and developmental traits across the genus Collinsia. (A) Flower size (PC1). (B) Floral longevity (in days). (C) Stage of stigma–anther contact. (D) Stage of stigmatic receptivity. See text for description of stages. Shapiro–Wilkes test for normality (W) indicates normal distributions for all traits except stage of stigmatic receptivity.
