Strobilus of a club moss

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Cross section through the strobilus (club)  of a club moss, Selaginella sp.  Visible are both megaporangia producing megaspores and microsporangia producing microspores.
Cross section through the strobilus (club) of a club moss, Selaginella sp. Visible are both megaporangia producing megaspores and microsporangia producing microspores.
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