. The cyclopædia of anatomy and physiology. Anatomy; Physiology; Zoology. Upper end of embryo-sac of the same as observed immediately before impregnation, 250 diam. The tubular germ-cell, the lower end of which is embedded in the nucleated cells of the endosperm, occupies its axis. latter, which is the parent cell of the embryo, is divided by a vertical septum into two hemispheres. In these two new septa are formed, also vertical, but at right angles to. The same immediately after imjtrt-gnatiim. The germ-cell is now divided by a transverse sep- tum into two compartments, the inferior of which
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