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Monocotyledons / Monocotiledóneas
Spirodela Schleid.
EOL Text
Spirodela Schleid., 1839
License | Public Domain |
Rights holder/Author | No known copyright restrictions apply. See Agosti, D., Egloff, W., 2009. Taxonomic information exchange and copyright: the Plazi approach. BMC Research Notes 2009, 2:53 for further explanation. |
Source | http://treatment.plazi.org/id/EEF1723B284E2F22CEC3787A6D594AA0 |
Nile region and Mediterranean region.
License | http://creativecommons.org/licenses/by-nc-sa/3.0/ |
Rights holder/Author | Bibliotheca Alexandrina, BA Cultnat, Bibliotheca Alexandrina - EOL Ar |
Source | http://lifedesk.bibalex.org/ba/pages/4414 |
Tropical and warm regions of the world.
License | http://creativecommons.org/licenses/by-nc-sa/3.0/ |
Rights holder/Author | Bibliotheca Alexandrina, BA Cultnat, Bibliotheca Alexandrina - EOL Ar |
Source | http://lifedesk.bibalex.org/ba/pages/4414 |
Depth range based on 2 specimens in 1 taxon.
Environmental ranges
Depth range (m): 0.5 - 0.5
Note: this information has not been validated. Check this *note*. Your feedback is most welcome.
License | http://creativecommons.org/publicdomain/mark/1.0/ |
Rights holder/Author | Ocean Biogeographic Information System |
Source | http://www.iobis.org/mapper/?taxon_id=817191 |
Barcode of Life Data Systems (BOLD) Stats
Specimen Records:59
Specimens with Sequences:66
Specimens with Barcodes:62
Species:3
Species With Barcodes:2
Public Records:49
Public Species:2
Public BINs:0
Spirodela is a genus of aquatic plant. It is one of several genera containing plants commonly called duckweed. Spirodela species are members of the Araceae under the APG II system. They were formerly members of the Lemnaceae.[2][3]
Spirodela species are free-floating thalli, 2-5 plants may remain connected to each other. Plants are green, but may have a red or brown underside. Multiple roots (7 to 12) emerge from each thallus. Spirodela is larger (10 mm) than Lemna (2–5 mm, one root per thallus).[4]
Certain species of Spirodela overwinter as turions, a dormant form that lacks air pockets and so sinks to the bottom of the pond. In spring turions rise to the surface and germinate to start a new population.
Spirodela often forms floating mats with related species, e.g. Lemna and Wolffia.
The genus is virtually cosmopolitan in distribution.[1][4]Spirodela punctata is sometimes treated as Landoltia punctata.[5]
Species[edit]
- Spirodela oligorrhiza (Kurz) Hegelm. - Africa, Australia, southern Asia
- Spirodela polyrrhiza (L.) Schleid. - cosmopolitan
- Spirodela punctata (G.Mey.) C.H.Thomps. - South America, Central America, West Indies
- Spirodela sichuanensis M.G.Liu & K.M.Xie - southern China
References[edit]
- ^ a b Kew World Checklist of Selected Plant Families
- ^ Govaerts, R. & Frodin, D.G. (2002). World Checklist and Bibliography of Araceae (and Acoraceae): 1-560. The Board of Trustees of the Royal Botanic Gardens, Kew.
- ^ Landolt, E. (1986) Biosystematic investigations in the family of duckweeds (Lemnaceae). Vol. 2. The family of Lemnaceae - A monographic study. Part 1 of the monograph: Morphology; karyology; ecology; geographic distribution; systematic position; nomenclature; descriptions. Veröff. Geobot. Inst., Stiftung Rübel, ETH, Zurich.
- ^ a b Flora of North America
- ^ Les, D. H. and D. J. Crawford. 1999. Landoltia (Lemnaceae), a new genus of duckweeds. Novon 9: 530-533.
License | http://creativecommons.org/licenses/by-sa/3.0/ |
Rights holder/Author | Wikipedia |
Source | http://en.wikipedia.org/w/index.php?title=Spirodela&oldid=621084849 |
Spirodela Schleid., 1839
License | Public Domain |
Rights holder/Author | No known copyright restrictions apply. See Agosti, D., Egloff, W., 2009. Taxonomic information exchange and copyright: the Plazi approach. BMC Research Notes 2009, 2:53 for further explanation. |
Source | http://treatment.plazi.org/id/80EA5D50A2E723A9EA6CD983B4540C5C |
Discoid, floating aquatics. Roots short, 3-18, clustered. Thalli solitary or a few cohering temporarily, reniform to rounded or obovate, flat or inflated, often reddish below; nerves 3-15. Budding pouches 2. Inflorescence of 1 female and 2 male flowers enclosed in a membranous spathe. Anther 2-thecous. Seeds longitudinally ribbed or smooth.
License | http://creativecommons.org/licenses/by-nc/3.0/ |
Rights holder/Author | Mark Hyde, Bart Wursten, Petra Ballings, Flora of Zimbabwe |
Source | http://www.zimbabweflora.co.zw/speciesdata/genus.php?genus_id=306 |