. Field and woodland plants. LONGrrUDlNAL SECTION THROUGH TUB FLOflTIROP THE BUTTEKCIT Showing the calyx, corolla, stamens, and pistil consists of several distinct carpels,one of which is represented in section to showits single ovule. GENERAL CHARACTERS OF PLANTS 11 sometimes so large tliat it almost completely encloses the flower,or even a cluster of flowers. The flower is the reproductive part of the plant, being concernedin the ])roduction of the seeds ; but the organs directly connected. INPEIUOR (1) AND SUPERIOR (2) OVARY. with the seed-formation are the pistil and the stamens
. Field and woodland plants. LONGrrUDlNAL SECTION THROUGH TUB FLOflTIROP THE BUTTEKCIT Showing the calyx, corolla, stamens, and pistil consists of several distinct carpels,one of which is represented in section to showits single ovule. GENERAL CHARACTERS OF PLANTS 11 sometimes so large tliat it almost completely encloses the flower,or even a cluster of flowers. The flower is the reproductive part of the plant, being concernedin the ])roduction of the seeds ; but the organs directly connected. INPEIUOR (1) AND SUPERIOR (2) OVARY. with the seed-formation are the pistil and the stamens, the formercontaining the ovules, and the latter producing the pollen cellsby means of which the ovules are impregnated. Thus the stamensand the pistil are the essential parts of the flower, though the corollaand the calyx may perform some subsidiary function in connexionwith the reproduction of the species. This being the case, a flower may be described as perfect if itconsists of stamens and pistil only, without any surrounding calyxor corolla ; and imperfect if it possesses no pistil or no stamens,regardless of the presence or absence of calyx and corolla. The two outer whorls of a well-developed perfect flower (calyxand corolla) together form the perianth. Some flowers, howeverhave only one whorl outside theanthers, representing both the calyxand corolla of the more highly or-ganised flower. This one whorl,therefore, is the perianth, and itsparts are not correctly termed eitherpetals or sep
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Keywords: ., bookcentury1900, bookdecade1900, bookidfield, bookpublisherlondon
