In extremely dry conditions, the protoplast of the algal body cell divides to form numerous daughter cells. These non-flagellated (aplanospore) germ cells are covered by a gelatinous membrane. This condition is called Pamela Dasha. Under favorable conditions the gelatinous coating dissolves in water flow and each cell transforms into a zoospore. Each zoospore gives rise to new algae. Such as Fucus, Sargassum, Chlamydomonas etc.