. Beginners' botany. Botany. THE FL 0 WER — PER TI LIZ A TION AND POLLINA TION 15 I planted in a garden where prevailing winds occur, in which direction would they better run ? Although most flowers are of such character as to insure or increase the chances of cross-pollination, there are some that absolutely forbid crossing. These flowers are usually borne beneath or on the ground, and they lack showy colors and per- fumes. They are known as cleistogamous flowers (meaning " hidden flow- ers "). The plant has normal showy flowers that may be insect-pol- linated, and in addition is pr
. Beginners' botany. Botany. THE FL 0 WER — PER TI LIZ A TION AND POLLINA TION 15 I planted in a garden where prevailing winds occur, in which direction would they better run ? Although most flowers are of such character as to insure or increase the chances of cross-pollination, there are some that absolutely forbid crossing. These flowers are usually borne beneath or on the ground, and they lack showy colors and per- fumes. They are known as cleistogamous flowers (meaning " hidden flow- ers "). The plant has normal showy flowers that may be insect-pol- linated, and in addition is provided with these simplified flowers. Only a few plants bear cleis- togamous flowers. Hog- peanut, common blue violet, fringed winter- green, and dalibarda are Fi^^- 20s the best subjects in the Northern states. Fig. 205 shows a cleistoga- mous flower of the blue violet at a. Above the true roots, slender stems bear these flowers, that are provided with a calyx, and a curving corolla which does not open. Inside are the stamens and pistils. Late in the season the cleistogamous flowers may be found just underneath the mold. They never rise above ground. The following summer one may find a seedling plant, in. Common Blue Violet. The familiar flowers are shown, natural size. The corolla is spurred. Late in the season, cleistogamous flowers are often borne on the surface of the ground. A small one is shown at a. A nearly mature pod is shown at t. Both a and b are one third natural 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 Bailey, L. H. (Liberty Hyde), 1858-1954. New York, The Macmillan company
Size: 1357px × 1841px
Photo credit: © The Book Worm / Alamy / Afripics
License: Licensed
Model Released: No
Keywords: ., bookauthorbai, bookcentury1900, bookdecade1900, booksubjectbotany
