. Lessons in nature study. Nature study. THE BEE AND THE LUPINU. 53. stigma. Manj' flowers have but one stigma of the form of a knob. The short stem between the ovary and the stigmas is the style. Standing around this pistil are a number of little bodies bearing orange-colored dust. The dust is the pollen and the bodies with their stems are the stamens. Now the great fact about the flower is that the seeds will • never form into good seeds un- less pollen gets on the stigmas and its grains grow down thru the style and find and touch a part of the minute beginnings of seeds in the ovary. This i
. Lessons in nature study. Nature study. THE BEE AND THE LUPINU. 53. stigma. Manj' flowers have but one stigma of the form of a knob. The short stem between the ovary and the stigmas is the style. Standing around this pistil are a number of little bodies bearing orange-colored dust. The dust is the pollen and the bodies with their stems are the stamens. Now the great fact about the flower is that the seeds will • never form into good seeds un- less pollen gets on the stigmas and its grains grow down thru the style and find and touch a part of the minute beginnings of seeds in the ovary. This is called fertilization. Pollen must get to the stigma. Thus it is seen that the stam- ens and pistils are all important parts of the flower. The other parts of the flower are the corolla and calyx. The corolla in the poppy is the orange-colored showy part which surrounds the stamens and pistil. Its separate pieces are called petals. The calyx is the green cap which comes off as the flower bud opens. The uses of these parts are to be learned later. All these parts are of different forms in the different kinds of flowers. In many, the reason of the particular form can be discovered and thus be a constant source of nature study lessons, as will be shown as we proceed. Another fact of great importance is that in most flowers the pollen can not get to the stigma of the flower in which it grows. Either it does not ripen at the same time with the stigma, or there is some contrivance to keep the pollen away from the stigma of its own flower. Pollen from one flower reaches the sti tuoma of Fig. 27. A sing-le flower of the com- mon blue-and white lupine, ( bicolor). The upper part is the signal, the lower part is the boat-shaped plat- form which encloses the part shown in fig. Please note that these images are extracted from scanned page images that may have been digitally enhanced for readability - coloration and appearance of these illustrations may not perfectly resembl
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