. the two sexes of dioecious plants. Nor does the cal) x differ, but the corolla sometimes differs slightly in shape, owing to the different position of the anthers. In Bor- reria the hairs within the tube of the corolla are differ- ently situated in the long-styled'and short-styled forms. In Pulmonaria there is a slight difference in the size of

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Keywords: ., bookcentury1800, bookdecade1890, booksubjectplants, bookyear1897