1. Family: Fabaceae Lindl.
    1. Deguelia Aubl.

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


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


    Relationships among genera of Millettieae have been notoriously difficult to unravel based on traditional morphological evidence and this is exemplified by the alphabetical arrangement of genera in the tribal treatments of Geesink (1981; 1984) and Polhill (1994). Geesink (1981) recognised 44 genera and c. 870 species in tribe Millettieae (as ‘Tephrosieae’) while 43 genera were accounted for in Geesink (1984) and Polhill (1994). The genera recognised, however, varied considerably with only 33 genera in common to both treatments of Geesink, while the list of Polhill (1994) combined elements of Geesink (1981, 1984) with new data accumulated since then. Tephrosia has traditionally comprised some 400 species but this is re-estimated at c. 350 species here.

    The traditional circumscription of the predominantly pantropical and subtropical tribe Millettieae is followed here (Fig. 45), with 45 genera and (904)–909–(914) species being recognised, (i.e. excluding the two genera and 11 species transferred to Brongniartieae, see Table 8), although the concept of what comprises Millettieae sens. strict. is changing rapidly based on evidence from molecular phylogenies. Sequence data for millettioid genera comes from the plastid rbcL gene (Doyle et al., 1997; 2000; Kajita et al., 2001; Hu & Chang, 2003), phytochrome nucleotide genes (Lavin et al., 1998), the plastid trnK-matK region (Hu et al., 2000) and the nuclear ITS region (Hu, 2000; Hu et al., 2002). Molecular data, together with reinterpreted evidence based on chemistry (Evans et al., 1985) and wood anatomy (Gasson et al., 2004), have been the basis for recognising a number of informal suprageneric groupings and for transferring Cyclolobium and Poecilanthe to tribe Brongniartieae (Table 8; Fig. 45).

     The most far-reaching result of the above molecular analyses was that a substantial part of the traditionally circumscribed tribe Phaseoleae is more closely allied to the core-Millettieae than to the Phaseoleae sens. lat. clade (see page 393). Circumscription of a revised tribe Millettieae is not possible at present until genera are more comprehensively sampled; however, a Millettioid sens. strict. group might be expected to include some genera in the basal millettioid and phaseoloid group, Phaseoleae subtribes Diocleinae, Ophrestiinae and in small part the Erythrininae, tribe Abreae and the core-Millettieae (Fig. 45). The basal millettioid and phaseoloid group comprises 17 genera (94 species) that may belong either in the Millettioids sens. strict. or Phaseoleae sens. lat., or to a clade sister to both these groups (e.g., Kajita et al., 2001). The core-Millettieae clade comprises c. 22 genera and c. 777 spp., with some additional generic segregates being necessary within the ‘canavanine group’ (Evans et al., 1985), to accommodate species of Millettia sens. lat. and Fordia sens. lat., which on the basis of molecular and chemical evidence are excluded from Millettia and Fordia sens. strict.

    Relationships between the major groups of genera centred on Lonchocarpus, Derris, Millettia and Tephrosia remain obscure, and still reflect a geographical bias in segregating them, i.e. distributions are limited largely to the New World in the Lonchocarpus group, and the Old World in the other groups. The suggestion that the Andean South American genus Apurimacia might be sister to the largely Old World Tephrosia rather than to Lonchocarpus (e.g., Kajita et al., 2001) is possibly indicative of other Old World–New World sister groups yet to be found. Further molecular evidence will probably result in an overall reduction in the number of genera recognised, particularly in the Tephrosia and Lonchocarpus groups where various small or monotypic ‘one-organ’ genera may be better placed within larger genera. Ptycholobium, Requienia and Paratephrosia, for example, are difficult to distinguish from Tephrosia, but for the emphasis traditionally placed on their atypical pods.

    Includes the American species previously placed in Derris; Evans et al. (1985) provide evidence of different chemical profiles between species of S American Derris and Lonchocarpus transferred to Deguelia by Azevedo-Tozzi (1989); the number of species cited above may thus be in question
    assa-ha, pa-gara, undeguela
    Tropical Amazonian and Atlantic rain forest, often seasonally flooded or riverine
    Amazonian S America to Panama, mostly Brazil (4 spp. in E and SE Brazil)
    Used as insecticides (rotenones)



    Native to:

    Bolivia, Brazil North, Brazil Northeast, Brazil Southeast, Brazil West-Central, Colombia, Costa Rica, Ecuador, French Guiana, Guyana, Nicaragua, Panamá, Peru, Suriname, Venezuela, Venezuelan Antilles

    Introduced into:

    Puerto Rico, Sri Lanka

    Deguelia Aubl. appears in other Kew resources:

    Date Reference Identified As Barcode Type Status
    Apr 1, 2009 Sothers, C.A. [562], Brazil K000921409
    Apr 1, 2009 Vicentini, A. [625], Brazil K000921410
    Apr 1, 2009 Carvalho, A.M. [2130], Brazil K000921407
    Apr 1, 2009 Lima, A. [58-3154], Brazil K000921408
    Apr 1, 2009 Calderon, C.E. [2636], Brazil K000921393
    Apr 1, 2009 Lowe, J. [3958], Brazil K000921397
    Apr 1, 2009 Lowe, J. [4283], Brazil K000921398
    Apr 1, 2009 Souza, V. [72], Brazil K000921394
    Apr 1, 2009 Rosário, C.S. [1003], Brazil K000921411
    Apr 1, 2009 Prance, G.T. [4108], Brazil K000921395
    Apr 1, 2009 Prance, G.T. [7174], Brazil K000921399
    Apr 1, 2009 Prance, G.T. [2226], Brazil K000921401
    Apr 1, 2009 Cid Ferreira, C.A. [5444], Brazil K000921396
    Jan 1, 2007 Santos, R.R. [R 1674], Brazil K000921392
    May 1, 1995 Bridgewater, S. [S88], Brazil K000921412
    Krukoff, B.A. [6147], Brazil K000921405
    Prance, G.T. [23442], Brazil K000921400
    Cid Ferreira, C.A. [7441], Brazil K000921403
    Bisby, F.A. [1216], Brazil K000921402
    Hamilton, W.D. [22], Brazil K000921406
    Hatschbach, G.G. [72160], Brazil K000921404

    First published in Hist. Pl. Guiane 2: 750 (1775)

    Accepted by

    • Camargo, R.A. & Goulart de Azevedo Tozzi, A.M. (2014). A synopsis of the genus Deguelia (Leguminosae, Papilionoideae, Millettieae) in Brazil Brittonia 66: 12-32. New York Botanical Garden.

    Not accepted by

    • Govaerts, R. (2000). World Checklist of Seed Plants Database in ACCESS D: 1-30141. [Cited as Lonchocarpus.]


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    Kew Backbone Distributions
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    © 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

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