Commelinanae
William J. Hahn
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close boxIntroduction
The Commelinanae includes the grasses, sedges, bromeliads, and relatives. This superorder includes approximately 25 families, 1075 genera, and 24000 species.
Characteristics
The Commelinanae are characterized by scrobiculate pollen with operculate apertures and orthotropous ovules, girdle-like endothecial thickenings of the anthers, annulate pollen apertures, and apical placentation (Linder and Kellogg, 1993).
References
Linder, HP & EA Kellogg. 1995. Phylogenetic patterns in the commelinid clade. pp 473-496 in: PJ Rudall, PJ Cribb, DF Cutler & CJ Humphries (eds.). Monocotyledons: systematics and evolution. Royal Botanic Garden, Kew.
Title Illustrations
| Scientific Name | Pontederia |
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| Scientific Name | Phragmites australis (Cav.) Steudel |
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© 1997
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| Scientific Name | Tillandsia usneoides L. |
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| Copyright |
© 1997
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About This Page
Georgetown University, Washington, D. C., USA
Correspondence regarding this page should be directed to William J. Hahn at
Page copyright © 1997
Page: Tree of Life
Commelinanae.
Authored by
William J. Hahn.
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Citing this page:
Hahn, William J. 1997. Commelinanae. Version 01 January 1997 (under construction). http://tolweb.org/Commelinanae/21340/1997.01.01 in The Tree of Life Web Project, http://tolweb.org/
