. The American botanist : a monthly journal for the plant lover. Botany. THE AMERICAN BOTANIST, 69 shaped bodies, the pistils. These organs always have the same relative position. The pistils are always in the cen- tre of the flower, the sepals on the outside and the petals and stamens between. The terms which I have just itali- cised are necessary for even the beginner to know but they are all in such common use that 'they are doubtless al- ready familiar. In the stone-crop flower these diflerent organs are so close together that most of its resemblance to a branch is lost but, in the blossom
. The American botanist : a monthly journal for the plant lover. Botany. THE AMERICAN BOTANIST, 69 shaped bodies, the pistils. These organs always have the same relative position. The pistils are always in the cen- tre of the flower, the sepals on the outside and the petals and stamens between. The terms which I have just itali- cised are necessary for even the beginner to know but they are all in such common use that 'they are doubtless al- ready familiar. In the stone-crop flower these diflerent organs are so close together that most of its resemblance to a branch is lost but, in the blossom of the spi- '-^ the production of seed, it is necessary that some of the yello w dust or pollen contained in the stamens should fall upon the pistil and stimulate their embryo seeds into growth. Otherwise no seed would result. Thus the sta- mens and pistils, being the only organs essential to the work of the flower are called the essential organs. The sepals and petals have no such important oflices to fill and are absent from the flowers of many species. When pre- sent, their functions are principally the protection of the essential organs from cold, wet and mechanical injury and the attraction and guidance of the insects that assist in transferring the pollen from stamen to pistil. Leaving out of consideration for the present, flowers of irregular shape, it will be found upon counting the parts of the flower that there is not much variation from cer- Every complete flower has these four kinds of organs but not all flowers are complete. The two kinds necessary to the plant are the stamens and pistils. In der-flower (Cleome, fig. 3) the parts are much more leaf-like in arrangement. Here we see a cir- cle of four small sepals, and above it the four petals each on a stalk while the single pistil in the centre is raised above them Fig. Please note that these images are extracted from scanned page images that may have been digitally enhanced for readability - coloration
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Keywords: ., bookcentury1900, bookdecade1900, booksubjectbotany, bookyear1901
