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Lycophyta (Selaginella)

Lycopodium and Selaginella, Psilotum, Equisetum

strobilus, microsporophylls, microphylls of two sizes megaspore, endosporic megagametophyate with archegonia.

cross section of stem of Lycopodium (above) and of Selaginella (below); xylem, phloem, parenchyma cells, cortex, epiderms sporophyte of Lycopodium (above) with microphylls all the same size and of Selaginella (below) with microphylls of two sizes heterosporus strobilus of Selaginella with endosporic gametophytes
above: adaxial megasporangium with megaspores; adaxial microsporangia
below: adaxial microsporangium with a tetrad of microspores; ligule;

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strobilus, microsporophylls, microphylls of two sizes	megaspore, endosporic megagametophyate with archegonia.



cross section of stem of Lycopodium (above) and of Selaginella (below); xylem, phloem, parenchyma cells, cortex, epiderms	sporophyte of Lycopodium (above) with microphylls all the same size and of Selaginella (below) with microphylls of two sizes	heterosporus strobilus of Selaginella with endosporic gametophytes above: adaxial megasporangium with megaspores; adaxial microsporangia below: adaxial microsporangium with a tetrad of microspores; ligule;