1. Family: Fabaceae Lindl.
    1. Mimozyganthus Burkart

      1. This genus is accepted, and its native range is Bolivia to Paraguay and NW. Argentina.

    [LOWO]

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

    Note

    The monogeneric tribe Mimozygantheae was described to accommodate the single species Mimozyganthus carinatus (Griseb.) Burkart, originally described in the genus Mimosa. Burkart commented that the genus Mimozyganthus was transitional between the Mimosoideae and Caesalpinioideae especially because of its peltate stigma, imbricate sepals and essentially valvate petals (the upper half of the corolla always with the petals valvate but the lower half with some overlap at the margins). He suggested, because of the combination of petal and sepal aestivation, a relationship with tribe Parkieae (the two genera of that tribe currently placed elsewhere and the tribe disbanded) but pointed out that Mimozyganthus differed in having spinescent stipules, free sepals, free stamens, eglandular anthers, no staminodes, a few-seeded ovary and a large peltate stigma. Burkart (1952) proposed that the genus Dinizia Ducke should also be included in the Mimozygantheae but Hutchinson (1964) placed Dinizia in the Mimoseae and Schulze-Menz (1964) placed it in the Parkieae. Guinet (1981) grouped Mimozyganthus with Dinizia in his mimosoid pollen study, but Elias (1981b) repositioned Dinizia in the Mimoseae, thus re-establishing the Mimozygantheae as monogeneric. Luckow et al. (2003) did not include Mimozyganthus in their molecular study but recent work (Luckow et al., submitted a) indicates that Mimozyganthus should be placed in the Prosopis group of Mimoseae, near Piptadeniopsis and Prosopidastrum. While treated in its traditional sense here pending publication of this analysis (Fig. 25), there is no doubt that tribe Mimozygantheae should be disbanded.

    Mimozyganthus has a unique combination of morphological features that supported treating it in an isolated taxonomic position (see above). Molecular analysis of the genus, however, has confirmed its position within tribe Mimoseae (Luckow et al., submitted a) and tribe Mimozygantheae will soon pass into synonymy
    Habit
    Shrubs or small trees
    Ecology
    Tropical and subtropical arid and semi-arid scrub bushland (chaco vegetation), often associated with cacti
    Distribution
    Neotropics, from SE Bolivia and SW Paraguay to NW and central W Argentina
    [LOWO]
    Use
    Used locally for firewood and turnery; apparently a dye is extracted from the stems

    Distribution

    Native to:

    Argentina Northwest, Bolivia, Paraguay

    Mimozyganthus Burkart appears in other Kew resources:

    First published in Darwiniana 3: 448 (1939)

    Sources

    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