. Morphology of gymnosperms. Gymnosperms; Plant morphology. CONIFERALES (TAXACEAE) 337. Fig. 386.—Torreya taxifolia: median longitudinal section of female gametophyte, showing egg with large nucleus (0), the remains of a neck cell {nc), and antipodal haustorial cells (Jir); also the tip of a pollen tube in contact with the egg, showing stalk nucleus (ite), tube nucleus {tn), and the two unequal male cells (m' and m^); the upward growth of the endosperm cells forms a sheath around the pollen tube; August 12, 1904; X460.—After Coulter and Land (ioi).. Please note that these images are extracted
. Morphology of gymnosperms. Gymnosperms; Plant morphology. CONIFERALES (TAXACEAE) 337. Fig. 386.—Torreya taxifolia: median longitudinal section of female gametophyte, showing egg with large nucleus (0), the remains of a neck cell {nc), and antipodal haustorial cells (Jir); also the tip of a pollen tube in contact with the egg, showing stalk nucleus (ite), tube nucleus {tn), and the two unequal male cells (m' and m^); the upward growth of the endosperm cells forms a sheath around the pollen tube; August 12, 1904; X460.—After Coulter and Land (ioi).. 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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