1. Family: Melastomataceae Juss.
    1. Genus: Antherotoma Hook.f.
      1. Antherotoma debilis (Sond.) Jacq.-Fél.

        This species is accepted, and its native range is Central African Republic to South Sudan and S. Africa.

    [FZ]

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

    Habit
    A perennial or rarely annual usually many-stemmed plant 10–95 cm. tall.
    Stem
    Stems erect, ascending or decumbent, simple or ± branched, 4-gonous and herbaceous towards the apex, cylindric and somewhat woody at the base, green or pink to dark red, sparse to ± densely hairy, the hairs white, appressed to subpatent and usually bulbous at the base; basal intemodes short, those below the floral leaves very long (up to 30 cm.); nodes with dense, ± stiff bristles.
    Leaves
    Leaves opposite, the floral ones closely approximate (pseudo-verticillate) and shortly petiolate; leaf-lamina 0·5–7·5 x 0·3–1·8 cm., linear-lanceolate to ovate (the lowermost the widest), acute or subobtuse at apex, contracted or attenuate at the base, crenulate-setulose (each tooth ending in a small bristle), membranous, concolorous or nearly so (of a somewhat lighter green above), appressed-setose on both faces, the setae sparse to ± dense, mainly on the nerves, longitudinally 3–5-nerved, the nerves impressed above, raised beneath, the transverse nerves and reticulation inconspicuous; petiole 2–5 mm. long.
    Flowers
    Flowers in contracted cymes arranged in terminal (rarely axillary) dense, many- or sometimes few-flowered heads 1–3·5 cm. in diameter, surrounded by the uppermost leaves; pedicels up to 5·5 mm. long; bracts 2·5 mm. long, lanceolate or elliptic, acute, scarious or with a foliaceous tip, pale green or pink with ciliate margin, persistent.
    Receptacle
    Receptacle 3–4 x 3 mm., ovoid, green to bright red, sparsely setose, the bristles white, simple, or sometimes towards the summit of receptacle inserted in pairs or in clusters at the apex of short appendages.
    Calyx
    Sepals 4–5 x 2–2·5 mm., oblong-triangular, obtuse or acute with a subterminal stellate- or penicillate-setose appendage; intersepalar segments c. 2 mm. long, penicillate-setose, persistent.
    Corolla
    Petals 7–5–10 mm. long, mauve to deep pink or rosy-purple.
    Stamens
    Anthers of the longer stamens 4–4·5 mm. long, pedoconnective 4—6 mm. long with the basal appendage 2–3 mm. long, spathulate and ± deeply bilobed; anthers of the shorter stamens similar to those of longer ones but shorter and with a c. 1 mm. long minutely appendiculate pedoconnective.
    Fruits
    Fructiferous receptacle 3–5 x 3–3·5 mm., broadly campanulate, ovoid or subspherical. Capsule slightly shorter than the receptacle, sparsely setose on the margins of the valves and with a cup-shaped, marginally setose crown around the insertion of the style.
    Note
    A very polymorphic species. We consider it probable that var. pusilla and var. prostrata are only ecophenes induced mainly by fires.
    [FTEA]

    Melastomataceae, G. E. Wickens. Flora of Tropical East Africa. 1975

    Habit
    Erect woody herb from a perennial rootstock or annual (semiprostrate and prostrate forms are known to the south of the Flora area), 9–55 cm. high; stem simple or branched, appressed pilose.
    Leaves
    Leaf-lamina ovate, oblong-ovate, ovate-lanceolate or linear-lanceolate, 1–6 cm. long, 0.2–1.6 cm. wide, apex acute to obtuse, base shortly attenuate to cuneate, margin entire to subserrate, bristles ± appressed to the margin, appressed setose on both surfaces; midrib and 1 pair of basal longitudinal nerves lightly impressed above, subprominent beneath; petiole 0–4 mm. long.
    Inflorescences
    Inflorescence terminal, capitate, many-flowered with 4–6 persistent bracteose foliage leaves; flowers 4-merous, shortly pedicellate.
    Calyx
    Calyx-tube (fig. 8/2, p. 28) cylindric-campanulate, 3.5–5 mm. long, 2–3 mm. in diameter, lightly setose; lobes subulate, 3–4 mm. long, margin ciliate, otherwise glabrescent except for a tuft of setae at the apex; intersepalar appendages linear, 2 mm. long, with stellately arranged setae at the apex.
    Corolla
    Petals mauve, broadly obovate, 8–14 mm. long, 8–1 3 mm. wide, slightly emarginate.
    Stamens
    Stamens 8, markedly unequal (except in forma osbeckioides); 4 large stamens with anthers 4.5 mm. long, arcuate connect ive 5–7 mm. long, bilobed appendage ± 1.5 mm. long, filament 7 mm. long; 4 small stamens with anthers 3 mm. long, connective ± 0.3 mm. long, appendage ± 0.2 mm. long, filament 3 mm. long; forma osbeckioides with anthers 4.5 mm. long, connective 0.7 mm. long, appendage 0.2 mm. long, filament 7 mm. long.
    Ovary
    Ovary with an apical crown of setae.

    Images

    Distribution

    Native to:

    Angola, Botswana, Central African Repu, Kenya, Malawi, Mozambique, Namibia, Northern Provinces, Sudan, Swaziland, Tanzania, Uganda, Zambia, Zaïre, Zimbabwe

    Antherotoma debilis (Sond.) Jacq.-Fél. appears in other Kew resources:

    Date Reference Identified As Barcode Type Status
    Milne-Redhead, E. [1114], Zambia K000313403 isotype
    Schweinfurth, G. [4289], Sudan K000313090 isotype
    Richards, H.M. [907], Zambia K000313404 holotype
    Burke [92], South Africa K000313343
    Kassner, T. [2591], Congo K000313106
    Rautanen, M. [74], Namibia K000313352
    Zeyher [539], South Africa K000313349 isotype
    Baines [s.n.], South Africa Dissotis debilis K000313350
    Baines, T. [s.n.], South Africa Dissotis debilis K000313351

    First published in Bull. Mus. Natl. Hist. Nat., B, Adansonia, sér. 4, 16(4): 270 (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

    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