1. Family: Begoniaceae C.Agardh
    1. Genus: Begonia L.
      1. Begonia engleri Gilg

        This species is accepted, and its native range is Tanzania (Usambara Mountains).

    [FTEA]

    Begoniaceae, Vanessa Plana, Martin J.S. Sands & Henk J. Beentje. Flora of Tropical East Africa. 2006

    Type
    Type: Tanzania, Lushoto District: E Usambara, Sigi, Engler 640 & 841 (B, syn.).
    Habit
    Herb to 120 cm, usually epilithic, prostrate basally; stem red- or purple-flecked, fleshy, thickest at base, not branched, 13–15 mm in diameter, with many long purple hairs or glabrous. Stipules persistent, broadly ovate, 11–15 mm long, acute, glabrous.
    Leaves
    Leaves red- or purple-flecked, slightly fleshy, oblong-ovate, oblique, 9–30 × 4.5–13 cm, one side 1.5–2 times wider than the other, the larger with a basal rounded lobe with 3–4 main veins 1/3 to 1/2 of the lamina length, base cordate, margin deeply doubly-serrate, apex shortly acuminate, sparsely pilose; venation palmate-pinnate, the main vein at an angle to the petiole; petiole 3–14 cm long, with rings of hairs or fimbriate trichomes to 8 mm long near junction with lamina.
    Inflorescences
    Inflorescence an erect axillary dichasial cyme; peduncle purple-flecked, 5–17 cm long, glabrous or sparsely pilose; bracts soon caducous, membranous, broadly ovate, 7–9 mm long; pedicels of ♂ 1–2.7 cm long, of ♀ to 1 cm long; female flowers with two small bracteoles at base.
    Flowers
    Male flowers: tepals 4, pink, the outer obovate and 9–14 × 6–14 mm, the inner slightly smaller; stamens many, filaments slightly connate at base, anthers obovoid. Female flowers: tepals 5, pink, obovate-orbicular, 5–9.5 × 3–6 mm; ovary ellipsoid, 4–7 mm long, 3-locular, 3-winged; placentation axillary; styles 3, divided halfway, the branches twisted, persistent in fruit; stigmatic band continuous, spiral.
    Fruits
    Fruit a 3-winged brown papery capsule 1.2–2.6 cm long, the wings usually sub-equal, triangular, (0.6–)0.7–2.4 cm wide, rounded, dehiscing at the juction with the wings.
    Ecology
    Moist rock faces in the forest zone (or once in the dry bushland zone); (350–)800–1800 m.
    Conservation
    Vulnerable (VU).
    Distribution
    Flora districts: T3 Range: Not known elsewhere

    Images

    Distribution

    Native to:

    Tanzania

    Begonia engleri Gilg appears in other Kew resources:

    Date Reference Identified As Barcode Type Status
    Greenway, P.J. [722], Tanzania 16613.000
    Greenway, W 25399.000
    Verdcourt [250], Tanzania K000242764
    Verdcourt [250], Tanzania K000242763

    First published in Bot. Jahrb. Syst. 34: 97 (1904)

    Accepted by

    • Govaerts, R. (1996). World Checklist of Seed Plants 2(1, 2): 1-492. MIM, Deurne.

    Literature

    Flora of Tropical East Africa
    • E.J. 81: 147 (1961).

    Sources

    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