. The essentials of botany. Botany. ANTHOPHYTA. 279 the stigmas are ready for pollination, so that in these, while the means for cross-pollination are perfect, self- fertilization is rendered impossible. 528. In the Oompositse (Fig. 167) the five anthers are united into a ring or tube around the style. The pollen. Fig. 167.—Flowers of Composites. A, of Dandelion, showing style pro- truding through rings of anthers; B, of Thoroughwort; C, ditto, vertical section showing style surrounded by anthers; I), style showing two stig- mas. All magnided. escapes from the inner side of the anthers into th
. The essentials of botany. Botany. ANTHOPHYTA. 279 the stigmas are ready for pollination, so that in these, while the means for cross-pollination are perfect, self- fertilization is rendered impossible. 528. In the Oompositse (Fig. 167) the five anthers are united into a ring or tube around the style. The pollen. Fig. 167.—Flowers of Composites. A, of Dandelion, showing style pro- truding through rings of anthers; B, of Thoroughwort; C, ditto, vertical section showing style surrounded by anthers; I), style showing two stig- mas. All magnided. escapes from the inner side of the anthers into the anther- tube, and at this time the immature style is short. As the latter grows it pushes up through the anther-ring, carrying the mass of pollen with it. Insects visiting the flowers for nectar at this stage rub off the little piles of pollen from the top of the stamen-tubes, and coming in contact after-. 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 Bessey, Charles E. (Charles Edwin), 1845-1915. New York : Holt
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Keywords: ., bookcentury1800, bookdecade1890, booksubjectbotany, bookyear1896
