1. Family: Rubiaceae Juss.
    1. Genus: Rothmannia Thunb.
      1. Rothmannia engleriana (K.Schum.) Keay

        This species is accepted, and its native range is Tanzania to S. Tropical Africa.

    [FTEA]

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

    Habit
    Small tree (? 0.9–)1.8–8.4 m. tall; young branches puberulous or velutinous, older branches with cracked reddish bark.
    Leaves
    Leaves in pairs (or occasionally ? ternate); blades oblanceolate to elliptic or sometimes obovate to broadly obovate, 9.3–30 cm. long, 3.8–14.8 cm. wide, apex rounded to shortly acuminate, base cuneate, coriaceous, often drying yellowish-green, glabrous above, glabrescent or less often glabrous or pubescent beneath; domatia usually present; petiole 0.3–1.5 cm. long, glabrous to velutinous; stipules triangular, long acuminate, 4–5 mm. long, caducous early on.
    Flowers
    Flowers sweetly scented, pendulous in terminal cymes, 3–17-flowered; peduncle up to 1.5 cm. long, usually with primary and secondary branches present, yellowish pubescent when young, flaking and reddish when older; pedicels absent; bracteoles triangular, 1.5–5 mm. long.
    Calyx
    Calyx yellowish to amber, pubescent; tube ± 5-grooved and wrinkled when dry, 0.5–1 cm. long; limb-tube 0.4–1.4 cm. long, distincdy wider than the tube, with 5 ridges; lobes linear, 0.3–2.1 cm. long, 1.5–2.5(–4) mm. wide.
    Corolla
    Corolla white with red-purple spots at throat, golden pubescent outside when dry; tube short, narrowly cylindrical below, campanulate above, 4.7–7.2 cm. long, the campanulate portion 2.7–4.4 cm. long, 1.8–4.7 cm. wide at top, 0.3–0.4 cm. wide at base, glabrescent inside; lobes overlapping to left in bud, ovate, 1.1–3.4 cm. long, 1.2–2.3 cm. wide, acute or sometimes obtuse, whitish tomentose above.
    Anthers
    Anthers entirely included, 1.4–2.1 cm. long.
    Pistil
    Style 3.3–4.5 cm. long, gradually widening towards apex; stigma included, 1.3–2.1 cm. long, 2.5–4 mm. wide.
    Fruits
    Fruit rust-coloured, flaking, globose to ellipsoidal, 1.9–4.6 cm. long, the calyx-limb persistent.
    Seeds
    Seeds brown, 7 mm. long, 5 mm. wide, ± 1.25 mm. thick.
    Figures
    Fig. 82.
    Habitat
    Brachystegia woodland; (200–)1100–1850 m.
    Distribution
    T1 T2 T4 T5 T6 T7 T8
    [FZ]

    Rubiaceae, D.M.Bridson & B.Verdcourt. Flora Zambesiaca 5:3. 2003

    Habit
    Small tree (0.9)1.8–8.4 m tall; young branches puberulous or velutinous, older branches with cracked reddish bark.
    Leaves
    Leaf blades 9.5–30 × 4–15 cm, oblanceolate to elliptic or sometimes obovate to broadly obovate, apex rounded to shortly acuminate, base cuneate, coriaceous, often drying yellowish-green, glabrous above, pubescent to glabrescent beneath; domatia usually present; petiole 3–15 mm long, glabrous to velutinous; stipules 4–5 mm long, triangular, long acuminate, soon caducous.
    Flowers
    Flowers sweet-scented, pendulous in terminal, 3–17-flowered inflorescences; peduncle up to 15 mm long; usually with primary and secondary branches present, yellowish pubescent when young, flaking and reddish when older; pedicels absent; bracteoles 1.5–5 mm long, triangular.
    Calyx
    Calyx yellowish- to amber-pubescent; tube c. 5- grooved and wrinkled when dry, 5–10 mm long; limb-tube 4–14 mm long, distinctly wider than the tube, with 5-ridges; lobes linear, 0.3–20 × 1.5–2.5(4) mm.
    Corolla
    Corolla white with red-purple spots at throat, golden pubescent outside when dry; tube short, 4.7–7.2 cm long, narrowly cylindrical below, campanulate above, the campanulate portion 2.7–4.4 cm long and 1.8–4.7 cm wide at the top, cylindrical part 0.3–0.4 cm wide, glabrescent within; lobes 1.1–3.4 × 1.2–2.3 cm, ovate, acute or sometimes obtuse, whitish tomentose above, overlapping to the left in bud.
    Anthers
    Anthers entirely included, 1.4–2.1 cm long.
    Style
    Style 3.3–4.5 cm long gradually widening towards apex.
    Pollen presenter
    Pollen presenter included, 1.3–2.1 × 0.25–0.4 cm.
    Fruits
    Fruit 1.9–4.6 cm long, globose to ellipsoid, rust-coloured, flaking, the calyx limb persistent.
    Seeds
    Seeds brown, 7 × 5 × c. 1.25 mm.

    Distribution

    Native to:

    Angola, Burundi, Malawi, Mozambique, Tanzania, Zambia, Zaïre

    Rothmannia engleriana (K.Schum.) Keay appears in other Kew resources:

    Date Reference Identified As Barcode Type Status
    Milne-Redhead, E. [2723], Zambia 34763.000
    Richards, H.M. [31492], Zambia 43364.000
    Timberlake, J. [5319], Malawi K000614665
    Timberlake, J. [6013], Malawi K000614742
    Timberlake, J. [6024], Malawi K000614829
    Brenan, J.P.M. [7990], Zambia Randia kuhniana 5038.000
    White, F. [2153], Zambia Rothmannia kuhniana 13902.000
    White, F. [3265], Zambia Rothmannia kuhniana 13903.000

    First published in Bull. Jard. Bot. État Bruxelles 28: 57 (1958)

    Accepted by

    • Timberlake, J.R., Bayliss, J., Alves, T., Francisco, J., Harris, T., Nangoma, D. & de Sousa, C. (2009). Biodiversity and Conservation of Mchese Mountain, Malawi. Report produced under the Darwin Initiative Award 15/036: 1-71. Royal Botanic Gardens, Kew.
    • Figueiredo, E. & Smith, G.F. (2008). Plants of Angola Strelitzia 22: 1-279. National Botanical Institute, Pretoria.
    • Strugnell, A.M. (2006). A checklist of the Spermatophytes of Mt. Mulanje, Malawi Scripta Botanica Belgica 34: 1-199.
    • 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 Tropical East Africa
    • F. White, Forest Flora of Northern Rhodesia p. 418 (1962).
    • Keay in Bulletin du Jardin Botanique de l'État a Bruxelles, 28: 57 (1958).

    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.

    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