1. Liberation of oospheres in
Sargassum takes place simultaneously, not only for a given plant but also for the all plants of the locality.
2. This simultaneous liberation proceeds in fortnightly crops on a particular day with a fixed interval after the highest spring tide; interval varies, however, in different species.
3. The oospheres in one and the same receptacle are not discharged at one time but in two or three successive fortnightly crops.
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