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Close up of a macrosporangium of a pine
Legend:
1 integument
3 archegonia
4 egg nucleus
2 remnants of megasporangium
English name: Pine
Scientific name: Pinus sp.
Familia: Pinaceae
Classis: Coniferopsida
Phylum: Gymnospermae
Regnum: Plantae
Close up of a macrosporangium of a pine
