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Tetrasporangia of red algae
![](/public/Final-Images/PL_Final685z_001-050/PL0047_685zPolysiphoniaTetradeOverviewDetail.jpg)
Legend:
1 thallus
3 mature tetraspore
2 early tetraspore
English name: Polysiphonia sp.
Scientific name: Polysiphonia sp.
Familia: Rhodomelaceae
Classis: Rhodophyceae
Phylum: Rhodophyta
Regnum: Protista
Tetrasporangia of red alga. After meiosis within the tetrasporangium 4 haploid tetraspores arise which grow to an independent male or female gametophyte