Vascular plants

Plants not producing seeds

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Sporangia axillary and solitary in the sporophylls, often in strobili (cones) or borne in fertile zones along the stems. Lycopodiophyta

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Sporangia scattered over the lower surface of the lamina, or 2-3(-4) fused into synangia in the axils of 2-lobed scale-like or leaf-like appendages, or rarely in terminal strobili, then the sporangia hanging from a peltate structure. Monilophyta