. Dudley memorial volume, containing a paper by William Russel Dudley and appreciations and contributions in his memory by friends and colleagues ... Dudley, William Russel, 1849-1911; Botany. Fig. 10. A, median section of a sporogonium at the time of the mitosis of the spore mother cells, x 15. B, apical region of a younger sporogonium, sp. spore mother cells, el. young elator, x 225. C, part of the lateral wall of the sporogonium. The capsule (Fig. 10) has a relatively thick wall which is better de- veloped at the apex than at the sides, this difference becoming still more marked in the late
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. Dudley memorial volume, containing a paper by William Russel Dudley and appreciations and contributions in his memory by friends and colleagues ... Dudley, William Russel, 1849-1911; Botany. Fig. 10. A, median section of a sporogonium at the time of the mitosis of the spore mother cells, x 15. B, apical region of a younger sporogonium, sp. spore mother cells, el. young elator, x 225. C, part of the lateral wall of the sporogonium. The capsule (Fig. 10) has a relatively thick wall which is better de- veloped at the apex than at the sides, this difference becoming still more marked in the later stages. The inner tissue now shows a separation into the roundish spore mother cells and the elongated young elaters. Long before the division of the spore mother cells begins, they show the first indi- cations of the lobing which later becomes so conspicuous. At this stage the walls of both the spore mother cells and the elaters are very delicate, but can be readily demonstrated by suitable stains, e. g. Bismarck brown.. 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 work.. Stanford University, Cal. , The University