. The developmental anatomy of Isoetes. Isoetes; Botany. High Level -Y X X D \2 6' Intermediate Level Y X X. Low Level B 26 Fig. 26. Schematic representation of the relative positions of successi\'e mem- bers of the same series. Trace 1 is in a more basal orthostichy (is closer to the y-axis) than trace 2. A. Superimposition of successive members in longitudinal view at right angles to the furrow plane. B, C, D. Appearance of the series segment 1-2 in transverse sections at various levels represented in A. The in- clination of segment 1-2 with respect to the x-axis varies with the level of sec

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. The developmental anatomy of Isoetes. Isoetes; Botany. High Level -Y X X D \2 6' Intermediate Level Y X X. Low Level B 26 Fig. 26. Schematic representation of the relative positions of successi\'e mem- bers of the same series. Trace 1 is in a more basal orthostichy (is closer to the y-axis) than trace 2. A. Superimposition of successive members in longitudinal view at right angles to the furrow plane. B, C, D. Appearance of the series segment 1-2 in transverse sections at various levels represented in A. The in- clination of segment 1-2 with respect to the x-axis varies with the level of sectioning. For comparison, see figures 15 to 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 Paolillo, Dominick J. Urbana, University of Illinois Press

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Keywords: ., bookcentury1900, bookcollectionbiodiversity, booksubjectbotany