. Plant life, considered with special references to form and function. Plant physiology. SEXUAL REPRODUCTION. 283 of the ovulary, then through the micropyle (fig. 323), and finally penetrate the megasporangium. The sperm nucleus then fuses with the ^^j^g nucleus (see •" 369).. Fig. 317. Fig. 31S. 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 Barnes, Charles Reid, 1858-1910. New York, H. Holt & company

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