1. Family: Rubiaceae Juss.
    1. Diodia L.

      1. This genus is accepted, and its native range is Central & E. U.S.A. to Tropical America, Tropical Africa.

    [FTEA]

    Rubiaceae, B. Verdcourt. Flora of Tropical East Africa. 1976

    Habit
    Annual or perennial erect or mostly decumbent or prostrate herbs; stems often 4-angled
    Leaves
    Leaves opposite or sometimes appearing whorled due to the presence of reduced axillary shoots, ± sessile or shortly petiolate; blades linear to ovate; stipules with bases united to the petiole, divided into fimbriae
    Flowers
    Flowers mostly small, not heterostylous, in small axillary clusters or, in one group of American species, terminal in spikes or capitula
    Calyx
    Calyx-tube ellipsoid, ovoid or obconic; lobes 2–4 (rarely 5–6), sometimes with some small accessory teeth, ± persistent
    Corolla
    Corolla-tube ± funnel-shaped, glabrous or hairy at the throat; lobes 4 (rarely 5–6), valvate
    Stamens
    Stamens 4 (rarely 5–6), exserted, the filaments inserted at the throat
    Pistil
    Ovary 2(rarely–3–4)-locular; ovules solitary in each cell, attached to the middle of the septum; style filiform exserted; stigma 2-lobed or ± capitate
    Fruits
    Fruit of 2 (rarely 3–4) indehiscent cocci
    Seeds
    Seeds oblong, dorsally convex, ventrally longitudinally grooved, rarely with a transverse groove or in one subgenus (Pleiaulax Verdc.) distinctly lobed.
    [FZ]

    Rubiaceae, B. Verdcourt. Flora Zambesiaca 5:1. 1989

    Habit
    Annual or perennial erect or mostly decumbent or prostrate herbs; stems often 4-angled.
    Leaves
    Leaves opposite or sometimes appearing whorled due to the presence of reduced axillary shoots, ± sessile or shortly petiolate; blades linear to ovate; stipules with bases united to the petiole, divided into fimbriae.
    Flowers
    Flowers mostly small, not heterostylous, in small axillary clusters or, in one group of American species, terminal in spikes or capitula.
    Calyx
    Calyx tube ellipsoid, ovoid or obconic; lobes 2–4(rarely 5–6), sometimes with some small accessory teeth, ± persistent Corolla tube ± funnel-shaped, glabrous or hairy at the throat; lobes 4 (rarely 5–6), valvate.
    Stamens
    Stamens 4 (rarely 5–6), exserted, the filaments inserted at the throat.
    Pistil
    Ovary 2 (rarely 3–4)-locular; ovules solitary in each cell, attached to the middle of the septum; style filiform, exserted; stigma 2-lobed or ± capitate.
    Fruits
    Fruit of 2 (rarely 3–4) indehiscent cocci.
    Seeds
    Seeds oblong, dorsaTly convex, vena-ally longitudinally grooved, rarely with a transverse groove or in one subgenus (Pleiaulax Verdc.) distinctly lobed.

    Images

    Distribution

    Native to:

    Alabama, Angola, Argentina Northeast, Arkansas, Bolivia, Brazil North, Brazil Northeast, Brazil South, Brazil Southeast, Brazil West-Central, Cuba, Dominican Republic, Florida, French Guiana, Ghana, Guyana, Haiti, Illinois, Ivory Coast, Jamaica, Kentucky, Kenya, Leeward Is., Liberia, Louisiana, Mexico Central, Mexico Gulf, Mexico Northeast, Mexico Southwest, Missouri, New Jersey, Nigeria, North Carolina, Ohio, Oklahoma, Paraguay, Peru, Puerto Rico, Sierra Leone, Socotra, Somalia, South Carolina, Tanzania, Tennessee, Texas, Venezuela, Virginia, Windward Is., Zambia

    Introduced into:

    Congo, Costa Rica, Japan, Korea, Mexico Southeast, Nicaragua, Taiwan

    Diodia L. appears in other Kew resources:

    Date Reference Identified As Barcode Type Status
    Jan 1, 2008 Moraes, A.O. [191], Brazil K001076066
    Jan 1, 2006 Melo, E. [2453], Brazil K001076065
    Jan 1, 2006 Bandeira, F.P. [185], Brazil K001076058
    Jan 1, 2006 Bandeira, F.P. [215], Brazil K001076060
    Faulkner, H. [1666], Tanzania 6281.000
    Giulietti, A.M. [1628], Brazil K001076059
    Coradin, L. [1191], Brazil K001076061
    Coradin, L. [5041], Brazil K001076062
    Silva, M.M. [179], Brazil K001076067
    Walter, B.M.T. [2781], Brazil K001076063
    Moraes, M.V. [592], Brazil K001076068
    Kollmann, L. [3571], Brazil K001060519
    Boone, W. [1053], Brazil K001060520
    Lüönd, B. [2111], Brazil K001076064
    Demuner, V. [1018], Brazil K001060518

    First published in Sp. Pl.: 104 (1753)

    Accepted by

    • Govaerts, R. (2003). World Checklist of Selected Plant Families Database in ACCESS: 1-216203. The Board of Trustees of the Royal Botanic Gardens, Kew.

    Literature

    Flora of West Tropical Africa
    • —F.T.A. 3: 230.
    Flora Zambesiaca
    • Gen. Pl., ed. 5: 45 (1754).
    • Sp. Pl.: 104 (1753)
    Flora of Tropical East Africa
    • L., Gen. Pl., ed. 5: 45 (1754)
    • Sp. Pl.: 104 (1753)

    Sources

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

    Flora of Tropical East Africa
    Flora of Tropical East Africa
    http://creativecommons.org/licenses/by-nc-sa/3.0

    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