“Stages in the formation of the megaspore, its germination, fertilization of the egg and endosperm cells. J, continued nuclear division has resulted in eight, namely, three antipodal nuclei, an, at the upper end of the megaspore cavity, two polar nuclei, l, in process of fusion, egg cell, eg, two synergids, s, s.” -Stevens, 1916
William Chase Stevens Plant Anatomy (Philadelphia, PA: P. Blakiston, 1916)
972×2400, 316.1 KiB
414×1024, 56.6 KiB
259×640, 31.6 KiB
129×320, 12.3 KiB