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Limnanthemum capitatum

Interesting Facts

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Description

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Family Menyanthaceae

Herbs perennial [or annual ], aquatic or nearly so. Leaves alternate, rarely opposite, simple or 3foliolate; stipules absent. Flowers (4 or) 5merous. Calyx lobes free or united . Corolla lobes united, valvate in bud. Stamens 5, free, alternate with petals. Ovary 1celled. Pollen grains bilaterally compressed , ± triquetrous , with 3 apertures . Ovary superior, 1celled. Fruit a dehiscent or indehiscent capsule. Seeds few to many, sometimes winged ; endosperm abundant.

Five genera and about 60 species: worldwide in temperate and tropics; two genera and seven species in China.

On the basis of differences in anatomy , chemistry, and palynology, recent phylogenetic accounts treat the Menyanthaceae as a separate family from Gentianaceae. Recent molecular evidence (Olmstead et al. Ann. Missouri Bot. Gard. 79: 249-265. 1992; Downie & Palmer 79: 266-283. 1992) also supports this conclusion. The Menyanthaceae have been placed in the Gentianales (Takhtajan, Flowering Pl. 230. 1969), Solanales (Cronquist, Evol. Class . Flowering Pl., ed. 2, 420-425. 1988), or Campanulales (Thorne, Aliso 13: 365-389. 1992) .[1]

Taxonomy

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Notes

Publishing author : F.Muell. Publication : Fragm. (Mueller) 1(2): 40 1858 [Jun 1858]

Basionym author: (Nees)

Similar Species

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Members of the genus Limnanthemum

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More Info

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Further Reading

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Notes

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Contributors

Identifiers

Footnotes

  1. Ting-nung Ho & Robert Ornduff "Menyanthaceae". in Flora of China Vol. 16 Page 140. Published by Science Press (Beijing) and Missouri Botanical Garden Press. Online at EFloras.org. [back]
Last Revised: 7/22/2012