structure of the flower of williamsonia.
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The stamens of Williamsonia curved inward and upward. ... Its stalked seeds would have grown from a central receptacle, and the entire flower of Williamsonia would have been surrounded by protective bracts (which are often the only part of the plant to undergo fossilization). The cones of Williamsonia were monosporangiate
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Williamsonia is an extinct genus of plant belonging to Bennettitales, an order of seed plants which bore a resemblance to cycads. Fossilized specimens of Williamsonia have been discovered worldwide
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