. Plant studies; an elementary botany. Botany. Fig. 307. Srfaginella Martensii: A, branch bearing strobili; B, a microsporopliyll with, a microsporaugium, showing microspores through a rupture in the wall; C, a megasporophyll with a megasporangium ; I), megaspores ; E, microspores.— 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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Keywords: ., bookauthorcou, bookcentury1900, bookdecade1900, booksubjectbotany