1. Family: Lamiaceae Martinov
    1. Genus: Rotheca Raf.
      1. Rotheca verdcourtii (R.Fern.) R.Fern.

        This species is accepted, and its native range is E. Zimbabwe to Mozambique.

    [FZ]

    Flora Zambesiaca. Vol 8, Pt 7. Avicenniaceae, R. Fernandes. Nesogenaceae, M.A. Diniz. Verbenaceae, R. Fernandes. Lamiaceae, R. Fernandes. 2005.

    General
    A spreading or bushy shrub 2–6 m tall, or sometimes a slender tree up to c. 9.6 m tall; old branches with a brown or grey rough bark, glabrous; young branches appressed hairy
    Leaves
    Leaves opposite, distinctly petiolate; lamina 4.5–14 × 2–9 cm, usually less than twice as long as wide or nearly as long as wide, broadly ovate, broadly elliptic to subcircular or subrhombic, cuneate or rounded at the base, short to long-acuminate at the apex, distinctly dentate-mucronate to subentire or entire, membranous, somewhat discolorous, drying nearly black on the upper surface, usually with sparse slender ± appressed hairs on the nerves beneath, the finer reticulation darker and very conspicuous beneath; petiole (0.5)1–2(2.7) cm long, slender; the leaves subtending the lowermost cymes (the lowermost foliaceous bracts) up to 5 × 4 cm, rounded, obtuse or acuminate at the apex, with petioles short or nearly absent Leaves opposite, distinctly petiolate; lamina 4.5–14 × 2–9 cm, usually less than twice as long as wide or nearly as long as wide, broadly ovate, broadly elliptic to subcircular or subrhombic, cuneate or rounded at the base, short to long-acuminate at the apex, distinctly dentate-mucronate to subentire or entire, membranous, somewhat discolorous, drying nearly black on the upper surface, usually with sparse slender ± appressed hairs on the nerves beneath, the finer reticulation darker and very conspicuous beneath; petiole (0.5)1–2(2.7) cm long, slender; the leaves subtending the lowermost cymes (the lowermost foliaceous bracts) up to 5 × 4 cm, rounded, obtuse or acuminate at the apex, with petioles short or nearly absent.
    Inflorescences
    Cymes 1–5-flowered, arranged in (4)5–8 opposite pairs in a loose terminal panicle up to 25 cm long, indumentum similar to that of the leaves; peduncles divaricate or erect-patent, very slender, the lowermost 4.5–8.5 cm long; pedicels of the dichotomies up to 8 mm long Cymes 1–5-flowered, arranged in (4)5–8 opposite pairs in a loose terminal panicle up to 25 cm long, indumentum similar to that of the leaves; peduncles divaricate or erect-patent, very slender, the lowermost 4.5–8.5 cm long; pedicels of the dichotomies up to 8 mm long.
    Calyx
    Calyx 3–5(6) mm long and 3–5 mm in diameter at the apex of the lobes, subturbinate, usually glabrous, rarely with some hairs at the base; calyx lobes 1–1.5(2.5) mm long, shorter than the tube or nearly absent, triangular or shortly triangular-oblong, subacute or rarely rounded Calyx 3–5(6) mm long and 3–5 mm in diameter at the apex of the lobes, subturbinate, usually glabrous, rarely with some hairs at the base; calyx lobes 1–1.5(2.5) mm long, shorter than the tube or nearly absent, triangular or shortly triangular-oblong, subacute or rarely rounded.
    Corolla
    Corolla bright blue throughout or with the median lobe dark blue or blue-purple; or corolla pale mauve with the median lobe violet or dark blue, or white and blue; tube 6.5–8.5 mm long and c. 4 mm in diameter; lateral lobes 9 × 4–5 mm, median lobe c. 13 mm long, all ciliate; corolla limb spherical when in bud, glabrous Corolla bright blue throughout or with the median lobe dark blue or blue-purple; or corolla pale mauve with the median lobe violet or dark blue, or white and blue; tube 6.5–8.5 mm long and c. 4 mm in diameter; lateral lobes 9 × 4–5 mm, median lobe c. 13 mm long, all ciliate; corolla limb spherical when in bud, glabrous.
    Ecology
    Known only from Zimbabwe and Mozambique.  Afromontane evergreen forest, Podocarpus , mist and gulley forests, and forest margins; 1300–2080 m.
    Note
    This species, from the eastern region of Zimbabwe, mainly in the Mutare area, is similar to R. myricoides var. myricoides .  It may be distinguished from that taxon by the taller habit, by the leaves relatively broader and not so attenuate towards the base and not attenuate towards the apex, by the more distinct and finer reticulation beneath, and by the cymes with longer peduncles forming long ample panicles.  It has also been confused with R. sansibarensis and R. violacea by various collectors.
    Distribution
    Mozambique Zimbabwe District code: ZIM E, MOZ MS.
    Habit
    A spreading or bushy shrub 2–6 m tall, or sometimes a slender tree up to c. 9.6 m tall; old branches with a brown or grey rough bark, glabrous; young branches appressed hairy.
    Anthers
    Anthers c. 1.25–1.75 mm long. Anthers c. 1.25–1.75 mm long
    Fruits
    Fruit 8–10 mm long, coppery-red (immature?). Fruit 8–10 mm long, coppery-red (immature?).

    Distribution

    Native to:

    Mozambique, Zimbabwe

    Rotheca verdcourtii (R.Fern.) R.Fern. appears in other Kew resources:

    First published in Kew Bull. 55: 153 (2000)

    Accepted by

    • Fernandes, R. & Diniz, M.A. (2005). Avicenniaceae, Nesogenaceae, Verbenaceae and Lamiaceae (subfams, Viticoideae and Ajugoideae) Flora Zambesiaca 8(7): 1-161. Royal Botanic Gardens, Kew.
    • Calane da Silva, M., Izdine, S. & Amuse, A.B. (2004). A Preliminary Checklist of the Vascular Plants of Mozambique: 1-184. SABONET, Pretoria.
    • 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 Zambesiaca
    • M. Coates Palgrave, ed. 3 of K. Coates Palgrave, Trees South. Africa: 991 (2002).

    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 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