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Trevoa __NOTOC__ ''Trevoa'' is a genus of actinorhizal plants; these dicotyledon flora are trees or small shrubs. The genus was first proposed by Miers in 1825, but was not fully described until 1830 by Sir William Jackson Hooker.〔J. Miers. 1860〕 Genus members are notable for their ability to fix nitrogen. Species of this genus are generally found in the near coastal forests and arid shrubland of South America. Some species are localized in the mountains of central Chile; for example, the species ''Trevoa trinervis'' occurs in the La Campana National Park〔C. Michael Hogan. 2008〕 and other proximate areas of central Chile. Along with some related plants in the family Rhamnaceae, they fix nitrogen via root nodules which contain ''Frankia'' bacteria. Other nitrogen-fixing genera in this family include ''Ceanothus'', ''Colletia'', ''Discaria'', ''Kentrothamnus'' and ''Retanilla''. ==Species== The botanist Karl Friedrich Reiche, publishing in the years 1894–1911, recognized 6 species. ''Trevoa quinquenervia'' Gillies & Hook., which has also been classified as ''Talguenea quinquenervia'',〔ipni.org search for ''Talguenea quinquenervia''〕 is currently the only accepted species in the genus.〔(【引用サイトリンク】url=http://www.theplantlist.org/tpl/search?q=Trevoa )〕 ''Trevoa trinervis'' Miers〔 is now considered a synonym of ''Retanilla trinervia'' (Gillies & Hook.) Hook. & Arn.〔(【引用サイトリンク】url=http://www.theplantlist.org/tpl/record/tro-27500770 )〕
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