Marsileaceae

Marsileaceae

▪ plant family
      only family of the fern order Marsileales. The three genera and about 70 species of small aquatic ferns, which are of nearly worldwide distribution, root in mud or grow in shallow water. The family is typified by spore-bearing structures (sporangia) in hard cases (sporocarps) produced at or beneath ground level at the bases of the leaves. The sporocarps are extremely long-lived; Marsilea (water clover) sporocarps more than 100 years old have been grown successfully to give rise to new sporophytes. Marsilea, with about 50 species, has cloverlike leaves with four leaflets and is widely distributed. Pilularia (pillwort), also nearly cosmopolitan, with six species, has threadlike (filiform) leaves without leaflets. Regnellidium, with one species, has leaves with two leaflets and is confined to southern portions of Brazil and Argentina.

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Universalium. 2010.

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Look at other dictionaries:

  • Marsileaceae — Temporal range: Lower Cretaceous[1] to recent Pilularia (top) and Marsilea (bottom) …   Wikipedia

  • Marsileaceae — Marsileaceae …   Wikipédia en Français

  • Marsileaceae — ? Marsileaceae Clasificación científica …   Wikipedia Español

  • Marsileaceae — prop. n. A natural family of clover ferns. Syn: family {Marsileaceae}. [WordNet 1.5] …   The Collaborative International Dictionary of English

  • Marsileaceae — Marsileaceae …   Wikipédia en Français

  • Marsileaceae — Kleefarngewächse Pillenfarn (Pilularia globulifera; oben) und Kleefarn (Marsilea quadrifolia; unten) Illustration Systematik …   Deutsch Wikipedia

  • Marsileaceae — noun clover ferns • Syn: ↑family Marsileaceae • Hypernyms: ↑fern family • Member Holonyms: ↑Filicopsida, ↑class Filicopsida, ↑Filicinae, ↑class Filicinae …   Useful english dictionary

  • marsileaceae — mar·sil·e·a·ce·ae …   English syllables

  • Семейство марсилеевые (Marsileaceae) —         Три рода марсилея (Marsilea), пилюлария (Pilularia) и регнеллидиум (Regnellidium) составляют семейство марсилеевых, которое, в свою очередь, является единственным семейством одноименного порядка. Наиболее характерными чертами этой группы… …   Биологическая энциклопедия

  • family Marsileaceae — noun clover ferns • Syn: ↑Marsileaceae • Hypernyms: ↑fern family • Member Holonyms: ↑Filicopsida, ↑class Filicopsida, ↑Filicinae, ↑class Filicinae …   Useful english dictionary

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