In the Posidoniaceae, inflorescences are supported by long peduncles; they are racemose with leafy bracts; the ultimate units are spike-like, with several to 30 apparently naked flowers. The flowers are bisexual (hermaphrodite), each with three stamens and a female flower. The female flower consists of an oblong ovary containing one ovule (Fig. 11F) and a disc-like stigma with irregular lobes (Fig. 11E), but no perianth (Fig. 11D). The mature stamens split longitudinally and release thread-like pollen grains (Fig. 12H) and the remaining thecae persist after pollination.

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