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Published In: Species Plantarum 2: 1036. 1753. (1 May 1753) (Sp. Pl.) Name publication detailView in BotanicusView in Biodiversity Heritage Library

Project Name Data (Last Modified On 6/2/2011)
Acceptance : Accepted
Project Data     (Last Modified On 6/3/2011)
Contributor Text: ABDUL GHAFOOR
General/Distribution: A genus of 3 species, distributed in Europe, tropical Africa, Asia and temperate Australasia. Represented here by the following species.


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Monoecious, free floating or rooting in shallow water, perennial herbs, with short stoloniferous stems. Leaves petiolate, in a basal rosette, ovate-suborbicular, cordate-reniform at the base, apically obtuse or subacute, entire; stipules 1 or 2, transparent, scarious. Flowers unisexual, actinomorphic, males 1.4, females solitary. Male spathe pedunculate, with lanceolate membranous segments. Male flowers: shortly pedicellate; sepals 3, oblong-elliptic, obtuse, white or greenish-white, persistent; petals 3, broad obovate, white, apex rounded, much broader and longer than the sepals, membranous; stamens 9-12, anthers dorsifixed, dithecous; pistillode present, spathe sessile otherwise similar to male. Female flowers: long pedicelled, protruding out of the spathe; sepals and petals as in the male; ovary elliptic; styles 6, free, flat, shortly 2-lobed. Fruit elliptic to globose, 6-ribbed, falsely 6-chambered, many-seeded, pulpy and berry-like, rupturing irregularly at the apex. Seeds ellipsoid with pulpy testa.
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