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Fern sperm
![](/public/Final-Images/PL_Final685z_001-050/PL0012_685zFernSpermDetail.jpg)
Legend:
1 sperm head
2 flagellum
English name: non-descript
Scientific name: non-descript
Familia: non-descript
Classis: Filicopsida
Phylum: Pteridophyta
Regnum: Plantae
Fern sperm. They develop in the antheridia on the prothallium