. Elementary botany . Fig. 452. Dichogamous flower of the bluet (Houstonia coerulea), the long-styled form. for the nectar, some of the pollen will be rubbed off and adhere to it. When now the butterfly visits a short-styled flower this pollen will be in the right position to be rubbed off onto the stigma of the short style. The positions of

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Keywords: ., bookcentury1800, bookdecade1890, bookpublisher, booksubjectbotany