These fusion nuclei pass the winter without further change. The numerous antheridial nuclei fuse in pairs with the numerous oospheric nuclei, the number of fusion nuclei being usually larger than in A.
The nuclear figure of the second mitosis is clearly distinguishable from the first by the diminished kinoplasm. The nuclei return to the ooplasm after division much diminished in achromatic content. Two mitoses occur in both oogenesis and spermatogenesis. e., the nuclei all pass to the periplasm, dividing mitotically and some of the daughter nuclei reenter the ooplasm, divide again, their products becoming the female nuclei, the plasmoderma being differentiated in the meantime. Portulacae possesses a multinucleate oosphere which develops in a manner very similar to that of A.
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