1. Family: Rubiaceae Juss.
    1. Genus: Rhodopentas Kårehed & B.Bremer
      1. Rhodopentas bussei (K.Krause) Kårehed & B.Bremer

        This species is accepted, and its native range is S. Somalia to Zambia.

    [FZ]

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

    Habit
    Erect or somewhat scrambling shrub or herb 0.6–4 m. tall; stems with sparse to dense white or brown hairs above, usually drying ferruginous or yellowish, sometimes densely velvety.
    Leaves
    Leaf blades 3.5–15 x 1.7–7 cm., ovate-lanceolate or ovate-oblong, acute or acuminate at the apex, cuneate at the base, mostly very discolorous, sparsely shortly hairy above, pubescent to velvety beneath with very fine short white hairs; petiole up to 2 cm. long; stipules with 3–9 linear setae 0.4–1.5 cm. long from a triangular base 1–6 mm. long.
    Inflorescences
    Inflorescences terminal and axillary, dense or lax, up to 8 cm. wide, many-flowered; peduncles up to 4 cm. long.
    Calyx
    Calyx tube c. 1.5 mm. long and wide, glabrous or velvety; lobes foliaceous, very unequal; 1–3 much enlarged, 0.5–1.8 cm. x 1–4 mm., narrowly lanceolate, acute, 3-nerved, pubescent, the rest small, 1.5–7 x 0.3–1.3 mm., linear, deltoid or lanceolate.
    Flowers
    Flowers vermilion-scarlet. Short-styled flowers very similar; corolla tube 0.7–1.7 cm. long, 0.5 mm. wide at the base, gradually expanding to the throat which is 1–2.5 mm. wide; exserted anthers usually blue-purple. Long-styled flowers with corolla tube 0.7–2 cm. long, 0.5–1.5 mm. wide at the base, dilated at the apex to 1.5–3 mm. wide for an apical cylindrical portion of 2.5–5(7) mm., glabrous to hairy outside, with white hairs inside save at the throat where they are scarlet; lobes (2.5)3–10(12) x 1–4.5 mm., narrowly oblong, elliptic or oblong-lanceolate; stamens entirely included; style usually bluish purple, exserted 1–9 mm., the stigmas scarlet or purple, 1.5–4.5 mm. long.
    Long-styled
    Long-styled flowers with corolla tube 0.7–2 cm. long, 0.5–1.5 mm. wide at the base, dilated at the apex to 1.5–3 mm. wide for an apical cylindrical portion of 2.5–5(7) mm., glabrous to hairy outside, with white hairs inside save at the throat where they are scarlet; lobes (2.5)3–10(12) x 1–4.5 mm., narrowly oblong, elliptic or oblong-lanceolate; stamens entirely included; style usually bluish purple, exserted 1–9 mm., the stigmas scarlet or purple, 1.5–4.5 mm. long.
    Short-styled
    Short-styled flowers very similar; corolla tube 0.7–1.7 cm. long, 0.5 mm. wide at the base, gradually expanding to the throat which is 1–2.5 mm. wide; exserted anthers usually blue-purple.
    Infructescences
    Fruiting inflorescences with individual branches ± spicate.
    Fruits
    Capsules 3–6 x 2.25–3.5 mm., oblong to obovoid, 10-ribbed, crowned with the persistent calyx lobes; beak only slightly raised.
    [FTEA]

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

    Habit
    Erect or somewhat scrambling shrub or herb 0.6–4 m. tall; stems with sparse to dense white or brown hairs above, usually drying ferruginous or yellowish, sometimes densely velvety.
    Leaves
    Leaf-blades ovate-lanceolate or ovate-oblong, 3.5–15 cm. long, 1.7–6.5 cm. wide, acute or acuminate at the apex, cuneate at the base, mostly very discolorous, sparsely shortly hairy above, pubescent to velvety beneath with very fine short white hairs; petiole up to 2 cm. long; stipules with 3–9 linear setae 0.4–1.5 cm. long from a triangular base 1–6 mm. long.
    Inflorescences
    Inflorescences terminal and axillary, dense or lax, up to 8 cm. wide, many-flowered; peduncles up to 4 cm. long.
    Calyx
    Calyx-tube ± 1.5 mm. long and wide, glabrous or velvety; lobes foliaceous, very unequal; 1–3 much enlarged, narrowly lanceolate, 0.5–1.8 cm. long, 1–4 mm. wide, acute, 3-nerved, pubescent, the rest small, linear, deltoid or lanceolate, 1.5–7 mm. long, 0.3–1.3 mm. wide.
    Flowers
    Flowers vermilion-scarlet. Short-styled flowers very similar; corolla-tube 0.7–1.7 cm. long, 0.5 mm. wide at the base, gradually expanding to the throat which is 1–2.5 mm. wide; exserted anthers usually blue-purple. Long-styled flowers with corolla-tube 0.7–2 cm. long, 0.5–1.5 mm. wide at the base, dilated at the apex to 1.5–3 mm. wide for an apical cylindrical portion of 2.5–5(–7) mm., glabrous to hairy outside, with white hairs inside save at the throat where they are scarlet; lobes narrowly oblong, elliptic or oblong-lanceolate, (2.5–)3–10(–12) mm. long, 1–4.5 mm. wide; stamens entirely included; style usually bluish purple, exserted 1–9 mm., the stigmas scarlet or purple, 1.5–4.5 mm. long.
    Long-styled
    Long-styled flowers with corolla-tube 0.7–2 cm. long, 0.5–1.5 mm. wide at the base, dilated at the apex to 1.5–3 mm. wide for an apical cylindrical portion of 2.5–5(–7) mm., glabrous to hairy outside, with white hairs inside save at the throat where they are scarlet; lobes narrowly oblong, elliptic or oblong-lanceolate, (2.5–)3–10(–12) mm. long, 1–4.5 mm. wide; stamens entirely included; style usually bluish purple, exserted 1–9 mm., the stigmas scarlet or purple, 1.5–4.5 mm. long.
    Short-styled
    Short-styled flowers very similar; corolla-tube 0.7–1.7 cm. long, 0.5 mm. wide at the base, gradually expanding to the throat which is 1–2.5 mm. wide; exserted anthers usually blue-purple.
    Infructescences
    Fruiting inflorescences with individual branches ± spicate.
    Fruits
    Capsules oblong to obovoid, 3–6 mm. long, 2.25–3.5 mm. wide, 10-ribbed, crowned with the persistent calyx-lobes; beak only slightly raised.
    Habitat
    Grassland, bushland and woodland (including Brachystegia, etc.), dry evergreen forest, also on coral rocks by sea, rocky slopes, disturbed places; 0–1800 m.
    Distribution
    K2 K4 K7 T1 T2 T3 T4 T5 T6 T7 T8 Z also cultivated in Trinidad, New Guinea and formerly at Kew

    Images

    Distribution

    Native to:

    Burundi, Kenya, Malawi, Somalia, Tanzania, Zambia, Zaïre

    Introduced into:

    Trinidad-Tobago

    Rhodopentas bussei (K.Krause) Kårehed & B.Bremer appears in other Kew resources:

    Date Reference Identified As Barcode Type Status
    Oct 16, 2009 s.coll. [s.n.] 13894.000
    Hornby [2101a], Tanzania 12211.000
    Peter, A. [32165], Tanzania K000394965 isotype
    Luke, P.A. [8390], Kenya K000172826
    Luke, P.A. [9311], Kenya K000172828
    Busse [2628], Tanzania K000394964 Unknown type material
    Luke, W. R. Q. et al [7972], Tanzania K000172925
    Musk, H. [114], Tanzania K000394966

    First published in Taxon 56: 1076 (2007)

    Accepted by

    • Govaerts, R.H.A. (2011). World checklist of selected plant families published update Facilitated by the Trustees of the Royal Botanic Gardens, Kew.

    Literature

    Kew Backbone Distributions
    • Baksh-Comeau, Y., Maharaj, S.S., Adams, C.D., Harris, S.A., Filer, D.L. & Hawthorne, W.D. (2016). An annotated checklist of the vascular plants of Trinidad and Tobago with analysis of vegetation types and botanical 'hotspots' Phytotaxa 250: 1-431.

    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