. Lessons in botany. Botany. COMPOSITE. 279 441. The pappus and syngenecious stamens.—The calyx tube in the aster, as in all of the composites, is united with the ovary, while the limb is free. In the aster, as in many others, the limb is divided into slender bristles, the pap- pus. (In some of the com- posites the pappus is in the form of scales.) The stamens are united by their anthers into a tube (syngenecious) which closely surrounds the style. (In ambrosia the an- thers are sometimes distinct.) The style in pushing through brushes out some of the pollen from the anthers and bears it aloft
. Lessons in botany. Botany. COMPOSITE. 279 441. The pappus and syngenecious stamens.—The calyx tube in the aster, as in all of the composites, is united with the ovary, while the limb is free. In the aster, as in many others, the limb is divided into slender bristles, the pap- pus. (In some of the com- posites the pappus is in the form of scales.) The stamens are united by their anthers into a tube (syngenecious) which closely surrounds the style. (In ambrosia the an- thers are sometimes distinct.) The style in pushing through brushes out some of the pollen from the anthers and bears it aloft as in the bell- flower, but the stigmatic sur- face is not yet mature and. Aster 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 Atkinson, George Francis, 1854-1918. New York, H. Holt and company
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