. The principles of botany, as exemplified in the phanerogamia. Botany; Botany; Phanerogams; 1854. THE ANDRCECIUM. 145 becomes united with it so as to constitute but one body. In this last case the stamens are gynandrous ( yw^ a female, and oji^p a male), and the central body or column is called the gynostemium (jvvrj pistil, and a stamen), as in Aristolo- chia, (Fig. 50.) Fig. 49. Fig. 60. Mg. .... 5 wO 10 ...a Fig. 61. Gjnandrous stamens of Aristolochia rotunda, u. Tlie ovary, h. The gymnostemium. c. The six stamens d. The six lobes of the stigma. Let us now examine briefly th
. The principles of botany, as exemplified in the phanerogamia. Botany; Botany; Phanerogams; 1854. THE ANDRCECIUM. 145 becomes united with it so as to constitute but one body. In this last case the stamens are gynandrous ( yw^ a female, and oji^p a male), and the central body or column is called the gynostemium (jvvrj pistil, and a stamen), as in Aristolo- chia, (Fig. 50.) Fig. 49. Fig. 60. Mg. .... 5 wO 10 ...a Fig. 61. Gjnandrous stamens of Aristolochia rotunda, u. Tlie ovary, h. The gymnostemium. c. The six stamens d. The six lobes of the stigma. Let us now examine briefly the parts of which the stamen is composed, having viewed them collectively. We have seen that a fully developed stamen is composed of a petiole termed a filament: a limb or blade named an anther, the pulverulent parenchyma contained in the anther being called pollen. The filament or petiole of the stamen supports the anther or metamorphosed lamina of the leaf, and commonly justifies its name from its form, that is to say, it is generally filiform and slender. Sometimes, however, it is dilated and petaloid, as in Ornithogalum umbellatum, the Star of Bethlehem, a white flower with a bulbous root, quite common in meadows and pastures about the middle of Spring. 13*. 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 Coultas, Harland, d. 1877. Philadelphia : King & Baird
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Keywords: ., bookcentury1800, bookdecade1850, booksubjectbotany, bookyear1854
