1. Family: Fabaceae Lindl.
    1. Coursetia DC.

      1. This genus is accepted, and its native range is Tropical & Subtropical America.

    [LOWO]

    Legumes of the World. Edited by G. Lewis, B. Schrire, B. MacKinder & M. Lock. Royal Botanic Gardens, Kew. (2005)

    Habit
    Trees, shrubs and herbs
    Ecology
    Seasonally dry tropical and subtropical forest and montane woodland
    Distribution
    SW USA, Mexico, C America, Caribbean and S America (Guyana, Venezuela, adjacent Brazil and the Andean cordillera to N Argentina; also with extensions to Paraguay and EC Brazil)
    Note
    Although Lavin (1988) and Lavin & Sousa (1995) recognised 5 sections, recent phylogenetic analysis of molecular data (Lavin et al., 2003) reveals that two of these, Poissonia and Neocracca, are best relegated to a distinct group, genus Poissonia (along with Coursetia weberbaueri); of the remaining three sections, Craccoides and Coursetia should be amalgamated. Only the Mesoamerican section Madrenses forms a monophyletic subclade within Coursetia

    The treatment of Polhill & Sousa (1981) recognised 21 genera and c. 145 species in Robinieae. This treatment, following modifications of Lavin (1988, 1993, 1995), Lavin & Sousa (1995), Polhill (1994), Lavin et al. (2003), reduces the tribe to 11 genera and c. 72 species (Fig. 52).

    The phylogenetic positions of genera in Robinieae (excluding Sesbanieae) have largely remained the same since Lavin & Sousa (1995), although recent phylogenetic analysis of molecular (ITS/5.8S, trnL intron and matK locus) and morphological data merit further modification (Lavin et al., 2003). The Cuban Hebestigma is well supported as sister to the Mesoamerican Lennea in the combined analysis of Lavin et al. (2003), and in most analyses the two genera are sister to the Gliricidia and Robinia groups. Within the monophyletic Gliricidia group, Gliricidia is now demonstrated to be paraphyletic with respect to Hybosema, so the two are amalgamated. The Gliricidia group still includes the Antillean Poitea together with Gliricidia.

    The monophyletic Robinia group comprising the ‘barbistyled’ genera, Olneya, Robinia, Coursetia, Peteria, Genistidium and Sphinctospermum, is sister to the Gliricidia group in most analyses of Lavin et al. (2003), although this is not strongly supported. The only significant modification within the Robinia group is that four eclectic species, Coursetia hypoleuca (Speg.) Lavin and C. orbicularis Benth. (unifoliolate species formerly composing the genus Poissonia), along with the Peruvian C. weberbaueri Harms and the Argentine-Bolivian C. heterantha (Griseb.) Lavin (formerly composing the monotypic Neocracca) form a well supported monophyletic group, here referred to as Poissonia, which in the analyses of Lavin et al. (2003) is either sister to Robinia or to Sphinctospermum.

    Images

    Distribution

    Native to:

    Argentina Northeast, Argentina Northwest, Arizona, Belize, Bolivia, Brazil North, Brazil Northeast, Brazil Southeast, Brazil West-Central, Colombia, Costa Rica, Dominican Republic, Ecuador, El Salvador, Guatemala, Guyana, Haiti, Honduras, Jamaica, Leeward Is., Mexico Central, Mexico Gulf, Mexico Northeast, Mexico Northwest, Mexico Southeast, Mexico Southwest, Nicaragua, Panamá, Paraguay, Peru, Puerto Rico, Texas, Trinidad-Tobago, Venezuela, Venezuelan Antilles, Windward Is.

    Coursetia DC. appears in other Kew resources:

    Date Reference Identified As Barcode Type Status
    Jun 1, 1988 Glaziou, A.F.M. [14670a], Brazil K000931815
    Rico, L. [1372], Bolivia K000295458

    First published in Ann. Sci. Nat. (Paris) 4: 92 (1825)

    Accepted by

    • Govaerts, R. (1999). World Checklist of Seed Plants 3(1, 2a & 2b): 1-1532. MIM, Deurne.

    Sources

    Herbarium Catalogue Specimens
    'The Herbarium Catalogue, Royal Botanic Gardens, Kew. Published on the Internet http://www.kew.org/herbcat [accessed on Day Month Year]'. Please enter the date on which you consulted the system.
    Digital Image © Board of Trustees, RBG Kew http://creativecommons.org/licenses/by/3.0/

    Kew Backbone Distributions
    The International Plant Names Index and World Checklist of Selected Plant Families 2019. Published on the Internet at http://www.ipni.org and http://apps.kew.org/wcsp/
    © Copyright 2017 World Checklist of Selected Plant Families. http://creativecommons.org/licenses/by/3.0

    Kew Names and Taxonomic Backbone
    The International Plant Names Index and World Checklist of Selected Plant Families 2019. Published on the Internet at http://www.ipni.org and http://apps.kew.org/wcsp/
    © Copyright 2017 International Plant Names Index and World Checklist of Selected Plant Families. http://creativecommons.org/licenses/by/3.0

    Legumes of the World Online
    http://creativecommons.org/licenses/by-nc-sa/3.0