. Morphology of gymnosperms. Gymnosperms; Plant morphology. CONITERALES (PINACEAE) 291 which is the plate or group of proembryonic cells remaining within the egg and mediating between the food supply of the egg and the suspensor. The size and generally active appearance of the four uppermost nuclei, exposed to the cytoplasm of the egg, indicate that they must remain functional for some time. This account of the proembryo of Pinus probably applies equally well to all the Abietineae, although the account is not full for any other genera except Picea (79) and Pseudoisuga (156). The other IP O O.
. Morphology of gymnosperms. Gymnosperms; Plant morphology. CONITERALES (PINACEAE) 291 which is the plate or group of proembryonic cells remaining within the egg and mediating between the food supply of the egg and the suspensor. The size and generally active appearance of the four uppermost nuclei, exposed to the cytoplasm of the egg, indicate that they must remain functional for some time. This account of the proembryo of Pinus probably applies equally well to all the Abietineae, although the account is not full for any other genera except Picea (79) and Pseudoisuga (156). The other IP O O. 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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