. Morphology of gymnosperms. Gymnosperms; Plant morphology. CYCADALES 151. Figs. 178-181.—Zamiafloridana: fig. 178, free nuclei of proembryo; X16; fig. 179, tissue at base of proembryo; X24; fig. 180, differentiation into suspensor and embryo; X29; fig. 181, young embryo showing long suspensor, natural size.—After Coulter and Chamberlain (33).. 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;

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. Morphology of gymnosperms. Gymnosperms; Plant morphology. CYCADALES 151. Figs. 178-181.—Zamiafloridana: fig. 178, free nuclei of proembryo; X16; fig. 179, tissue at base of proembryo; X24; fig. 180, differentiation into suspensor and embryo; X29; fig. 181, young embryo showing long suspensor, natural size.—After Coulter and Chamberlain (33).. 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; Chamberlain, Charles Joseph, b. 1863; Coulter, John Merle, 1851-1928. Morphology of spermatophytes. Part I. Gymnosperms. Chicago, University of Chicago Press

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