a Longitudinal section of a female C. hirtella flower (size of the small squares is 1 mm²). Perianth and style were detached. The pollen sacs on the staminodes are highly reduced. The introrse side of the staminodes bears long trichomes that in intact flowers touched the style b Female flower of C. rehmannii var. rehmannii with bilobate stigma arms c Female flower of C. megarrhiza with bulging stigma arms.