. Morphology of gymnosperms. Gymnosperms; Plant morphology. CYCADALES 133 entire lack of starch. The layer next within is also somewhat differentiated, its cells being much larger than those of the outer layer, but much smaller than those of the ordinary endosperm cells of the remaining vegetative portion of the gametophyte. Many cells, like the evenly shaded one in fig. 134, contain tannin. 135. 136. 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 res
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