. Plant studies; an elementary botany. Botany. Fig. 124. Fruits of Spanish needle, showing barbed ap- pendages for grappling. The figure to the left is one of the fruits enlarged.— After Kernek. Fig. 125. A fruit of beggar ticks, showing the two barbed append- ages which lay hold of animals. —After Beal. 80. Discharge of seeds,—"While seeds are generally carried away from the parent plant by the agency of water currents or air currents, as al- ready noted, or by animals, in some in- stances there is a mechanical discharge rirovided for in the structure of the seed- case. In such plants as
. Plant studies; an elementary botany. Botany. Fig. 124. Fruits of Spanish needle, showing barbed ap- pendages for grappling. The figure to the left is one of the fruits enlarged.— After Kernek. Fig. 125. A fruit of beggar ticks, showing the two barbed append- ages which lay hold of animals. —After Beal. 80. Discharge of seeds,—"While seeds are generally carried away from the parent plant by the agency of water currents or air currents, as al- ready noted, or by animals, in some in- stances there is a mechanical discharge rirovided for in the structure of the seed- case. In such plants as the witch hazel and violet, the walls of the seed-vessel press upon the contained seeds, so that when rupture occurs the seeds are pinched out, as a moist apple-seed is discharged by being pressed between the thumb and finger (see Figs. 121, 122). In the touch- me-not a strain is developed in the wall of the seed-vessel, so that at rupture it. 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 Coulter, John Merle, 1851-1928. New York, D. Appleton and Company
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