Marsileaceae Mirb.
  • Hist. Nat. Vég. 5: 126. 1802. (21 Nov 1802)
  • Water clover Family


This taxon is accepted by World Flora Online consortium
Notes: More details could be found in The Plant List v.1.1. Originally in The Plant List v.1.0

General Description

Plants aquatic or amphibious, rhizomatous. Stems growing on soil surface or subterranean, main stem long-creeping and giving rise to long or short shoots only at nodes; hairs laterally attached, multicellular. Roots arising at nodes and also along internodes. Leaves distichous, long-petioled, sometimes filiform and lacking expanded blades. Sori within hard bean- or pea-shaped bodies (sporocarps) arising on short stalks from near or at base of petioles. Sporangia of 2 kinds, borne within the same sorus and sporocarp; megasporangia containing a single megaspore; microsporangia containing 20--64 microspores. Gametophytes remaining within spores; microgametophytes of only a few cells; megagametophytes protruding from spores, each bearing 1 simple archegonium.

Plants small, herbaceous, in shallow water or on shores of lakes and ponds. Rhizomes slender and creeping with a siphonostele, covered with short side-attached hairs or glabrous. Fronds linear or with 2-4 obtriangular or fan-shaped pinnae attached at top of stipe, these floating on water surface or emergent. Spores formed inside bean-shaped sporocarps attached to stipe by a short peduncle. Sporocarps containing 2-30 sori, each sorus including both megasporangia and microsporangia. Megasporangium with 1 large spore; microsporangium with 16-64 small spores.

Morphology

Herbs growing in water or wet places, with wide–creeping solenostelic, sometimes hairy rhizomes

Literature

SELECTED REFERENCES

Braun, A. 1871. Hr. Braun theilte neuere Untersuchungen über die Gattungen Marsilea und Pilularia. Monatsber. Königl. Preuss. Akad. Wiss. Berlin 1870: 653--753. Johnson, D. M. 1986. Systematics of the New World species of Marsilea (Marsileaceae). Syst. Bot. Monogr. 11: 1--87.

Common Names

NameLanguage
Water clover Family

 Information From

Flora Of CHina @ efloras.org
http://www.efloras.org/flora_page.aspx?flora_id=2
'Flora of China @ eFloras (2008). Published on the Internet http://www.efloras.org/flora_page.aspx?flora_id=2 [accessed August 2016]' Missouri Botanical Garden, St. Louis, MO & Harvard University Herbaria, Cambridge, MA.
  • A Missouri Botanical Garden
Plants Of the World Online Portal
https://www.kew.org/science/who-we-are-and-what-we-do/strategic-outputs-2020/plants-of-the-world-online
http://www.plantsoftheworldonline.org/terms-and-conditions
  • B The Trustees of the Royal Botanic Gardens, Kew
Flora of North America @ efloras.org
http://www.efloras.org/flora_page.aspx?flora_id=1
'Flora of North America @ eFloras (2008). Published on the Internet http://www.efloras.org/flora_page.aspx?flora_id=1 [accessed August 2016]' Missouri Botanical Garden, St. Louis, MO & Harvard University Herbaria, Cambridge, MA.
  • C Flora of North America Association
Marsileaceae
World Flora Online Data. 2017.
  • D CC0 1.0 Universal (CC0 1.0).
World Flora Online consortium
http://www.worldfloraonline.org/organisation/WFO
World Flora Online Data. 2018.
  • E CC0 1.0 Universal (CC0 1.0).