1. Family: Fabaceae Lindl.
    1. Alistilus N.E.Br.

      1. This genus is accepted, and its native range is S. Africa, Madagascar.

    [FZ]

    Leguminosae, B. Mackinder, R. Pasquet, R. Polhill & B. Verdcourt. Flora Zambesiaca 3:5. 2001

    Habit
    Procumbent herbs or twiners.
    Leaves
    Leaves 3-foliolate; leaflets characteristically ovate-rhombic, the terminal ones usually rounded, lobed on each side at the base, the lateral leaflets with a lobe on the outer side only; stipules ovate, prominently nerved; stipels present, flat and spathulate.
    Inflorescences
    Inflorescences held erect, pseudoracemose, the branches reduced to small nodules; bracteoles small, soon falling.
    Calyx
    Calyx tube cupular; lowest tooth and lateral teeth shortly triangular or ovate-triangular, the 2 upper teeth joined to form a notched lobe.
    Corolla
    Standard round, slightly emarginate with 2–4 callous appendages, auricled; wings with backwardly directed spur; keel rounded and not sharply angled in the middle, very obtuse at the apex.
    Stamens
    Vexillary stamen loosely joined at the middle or ± free.
    Pistil
    Ovary linear with 5–8 ovules; style conspicuously laterally flattened and blade-like throughout its length, forming ± a right angle with the ovary, thin along each margin so as to appear winged on both sides, glabrous; stigma scarcely to distinctly penicillate.
    Pollen
    Pollen grains triporate to tricolporate with only faint sculpturing.
    Fruits
    Pods falcate, flat, dehiscent (not known mature in Africa).
    [LOWO]

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

    Note

    Previous accounts of the Phaseoleae by Baudet (1978) and Lackey (1981) recognised 90 and 84 genera and c. 1540 and 1480 species respectively in the tribe. In an equivalent, i.e. traditionally held view of Phaseoleae, 89 genera and (1554)–1567–(1580) species are treated here (Table 9; Fig. 47). Changes between Baudet (1978) and this treatment are that eleven genera are now in synonymy or have subsequently been placed in Millettieae, two genera have been transferred from Desmodieae and eight new genera have been added. Vigna has traditionally been thought to comprise some 150–200 species, but Vigna sens. strict. may contain fewer than 100.

    Recent molecular analyses of the tribe, however, have emphasised both the polyphyletic and paraphyletic nature of Phaseoleae as traditionally circumscribed (Bruneau & Doyle, 1990; Doyle & Doyle, 1993; Delgado Salinas et al., 1993; Bruneau et al., 1995; Doyle et al., 1997, 2000; Kajita et al., 2001; Goel et al., 2001; Lee & Hymowitz, 2001). This has required a radical realignment of elements of the phaseoloids (Table 9; Fig. 47), with at least two major clades being evident: Phaseoleae subtribes Diocleinae and Ophrestiinae which together with tribe Abreae are allied to the core-Millettieae (Fig. 45), and the remaining groups comprising a Phaseoleae sens. lat. clade. The rbcL phylogeny of Kajita et al. (2001) and the ITS analysis of Hu et al. (2002) are equivocal as to which clade subtribe Clitoriinae belongs. Phaseoleae sens. lat. also includes two traditionally independent tribes, the Desmodieae and Psoraleeae. Delimiting a recircumscribed Phaseoleae sens. strict is thus very problematic. A solution may be to recognise a broad tribe Phaseoleae, comprising the subtribes Kennediinae, Cajaninae, Phaseolinae and Glycininae, assorted basally branching genera, and tribes Desmodieae and Psoraleeae (both treated at subtribal level).

    Placed in subtribe Phaseolinae, closely allied to Dolichos and Lablab
    Habit
    Herbs or subshrubs
    Ecology
    Seasonally dry tropical open woodland, xerophytic scrubland, bushland or grassland, often associated with rocky outcrops
    Distribution
    Southern Africa (S Zambezian region, 1 sp.), SC and S Madagascar (2 spp.)

    Images

    Distribution

    Native to:

    Botswana, Madagascar, Namibia, Northern Provinces

    Alistilus N.E.Br. appears in other Kew resources:

    First published in Bull. Misc. Inform. Kew 1921: 294 (1921)

    Accepted by

    • Govaerts, R. (1995). World Checklist of Seed Plants 1(1, 2): 1-483, 529. MIM, Deurne.

    Literature

    Flora Zambesiaca
    • Verdcourt in Kew Bull. 24: 387, 409 (1970)*.
    • in Bull. Misc. Inform., Kew 1921: 294 (1921).

    Sources

    Flora Zambesiaca
    Flora Zambesiaca
    http://creativecommons.org/licenses/by-nc-sa/3.0

    Kew Backbone Distributions
    The International Plant Names Index and World Checklist of Selected Plant Families 2018. 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 2018. 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