1. Family: Melastomataceae Juss.
    1. Genus: Antherotoma Hook.f.
      1. Antherotoma gracilis (Cogn.) Jacq.-Fél.

        This species is accepted, and its native range is DR Congo to Angola.

    [FZ]

    Melastomataceae, R. and A. Fernandes. Flora Zambesiaca 4. 1978

    Habit
    A perennial herb up to c. 80 cm. tall.
    Stem
    Stems several, erect, straight, simple or few-branched, slender, 4-gonous, green, turning dark red with age, glabrous or sparsely hairy (the hairs short, appressed); internodes rather long.
    Leaves
    Leaves opposite, sessile; lamina 1·5–4–7(5·7) x 0·2–1 cm., linear-oblong or linear, the lower ones ovate or elliptic, all acute or the lowermost and median obtuse or subobtuse, attenuate at base, entire or indistinctly crenulate, somewhat rigid, concolorous (yellow-green) or slightly discolorous (sometimes reddish above with age), glabrous or sparsely appressed-setose (bristles weak, short) mainly along the nerves beneath, longitudinally 3-nerved, the longitudinal nerves slender, impressed above, prominent beneath, the transverse nerves and reticulation inconspicuous.
    Flowers
    Flowers 4(5)-merous, solitary or 3-several in terminal or axillary (in uppermost axils) cymes, sometimes forming lax terminal narrow panicles up to 22 cm. long, usually shorter; primary and secondary peduncles longer or subequalling the axillary leaf, slender, dark purple; bracts 4–9 mm. long, ovate-lanceolate, acute, red, glabrous, ciliate at the margin, caducous; pedicels c. 2 mm. long.
    Receptacle
    Receptacle 4·5–6 x 3–4 mm., campanulate, sparsely setose (the bristles short, slender, white, appressed).
    Calyx
    Sepals 5·5–7 x 2–3 mm., triangular-lanceolate or oblong, acute or obtuse, rose-purplish, dorsally appressed-pilose, ciliate at the margin, deciduous; intersepalar segments 3–4 mm. long, linear-subulate, ending in a bristle.
    Corolla
    Petals 1–1·8 cm. long, narrowly obovate, mauve to purple-violet.
    Stamens
    Long stamens with anthers 4–5 mm. long, pedoconnective 6–7 mm. long, the anterior appendage 2–3 mm. long, ± deeply 2-lobed or 2-fid; short stamens with anthers 3–4 mm. long, pedoconnective c. 1 mm. long, minutely 2-tuberculate at the base.
    Fruits
    Fructiferous receptacle slightly contracted below the mouth, glabrescent. Capsule ovoid, equalling the receptacle, with a crown of bristle-tipped scales at the apex.

    Images

    Distribution

    Native to:

    Angola, Zambia, Zaïre

    Antherotoma gracilis (Cogn.) Jacq.-Fél. appears in other Kew resources:

    Date Reference Identified As Barcode Type Status
    Welwitsch [W.921], Angola K000313385 isotype

    First published in Bull. Mus. Natl. Hist. Nat., B, Adansonia, sér. 4, 16(2-4): 271 (1995)

    Accepted by

    • Roskov Y. & al. (eds.) (2018). Species 2000 & ITIS Catalogue of Life Naturalis, Leiden, the Netherlands.

    Sources

    Flora Zambesiaca
    Flora Zambesiaca
    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