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Prothallium filament of a fern
Legend:
1 formation of prothallium
3 chloroplasts
2 remains of the spore wall
English name: non-descript
Scientific name: non-descript
Familia: non-descript
Classis: Filicopsida
Phylum: Pteridophyta
Regnum: Plantae
Prothallium filament of a fern
