. Elements of botany. Plants. FERTILIZATION. 177 in various stages of maturity, he may investigate its adaptations for insect fertilization and its mode of protecting its pollen from creeping insects and from rain. It will be particularly interesting to compare the various degrees of perfection with which closely related flowers attain these results. Several flowers should be worked out pretty fully and the results of the examination of each recorded in a written account and a series of sketches. Out of the many possible studies of this kind the following are suggested : The flower of the pea,
. Elements of botany. Plants. FERTILIZATION. 177 in various stages of maturity, he may investigate its adaptations for insect fertilization and its mode of protecting its pollen from creeping insects and from rain. It will be particularly interesting to compare the various degrees of perfection with which closely related flowers attain these results. Several flowers should be worked out pretty fully and the results of the examination of each recorded in a written account and a series of sketches. Out of the many possible studies of this kind the following are suggested : The flower of the pea, the bean, or the locust, consulting Figs. 159, 160, Fig. 159. —Sweet Pea, Flower, Young Fruit, and 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 resemble the original Bergen, Joseph Y. (Joseph Young), 1851-1917; Bergen, Joseph Y. (Joseph Young), 1851-1917. Bergen's Botany: key and flora, Pacific coast ed. Boston : Ginn
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Keywords: ., bookcentury1800, bookdecade1890, booksubjectplants, bookyear1896
