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sex organs x40. This plant is commonly called a stonewart. Various
authorities put it in either its own division or with Chlorophyta
female conceptacle x40. This egg-producing
structure is in the blade of the common rockweed, a brown alga.
male conceptacle x40. These make sperm
which are then released into the sea.
x100, a filamentous green alga. The large cells are ooginia.
x40. A vegetative filament is on the right. The other filaments show
various stages of sexual reproduction.
vegetative fillament x100. You can see
spiral chloroplasts and a nucleus in each cell.
x100. Colonies consist of a hollow ball of cells. New colonies form
within old colonies.
x400. A filamentous green alga with one cup-shaped chloroplast in each
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