1. Family: Aponogetonaceae Planch.
    1. Genus: Aponogeton L.f.
      1. Aponogeton afroviolaceus Lye

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

    [FTEA]

    Aponogetonaceae, K.A. Lye (Agricultural University of Norway). Flora of Tropical East Africa. 1989

    Habit
    Plants monoecious.
    Tubers
    Tuber oval to elongate or cylindrical, 10–25 mm. long and ±15 mm. thick, the upper part with numerous whitish roots.
    Leaves
    Leaves few–many (often 3–15 per plant); petiole usually 5–20 cm. long; blades 2–8 cm. long and 3–16 mm. wide, oval to linear-oblong, with 5–7 parallel main nerves, cuneate to truncate base and blunt or subacute tip, more rarely the blades have a long attenuate base and are then not well separated from the petiole.
    Flowers
    Flowers mauve to lilac, densely set in unbranched spikes and facing in all directions; peduncle greenish, but often white to mauve below, dull maroon to brown above, 5–30 cm. long (depending on the depth of the water) and 0.5–2.5 mm. thick; mature spathe not seen, very early caducous.
    Inflorescences
    Spike 6–30 mm. long and 5–10 mm. wide, 10–30-flowered, sometimes elongating to 40 mm. long when fruiting.
    Tepal
    Tepals 2, purple or mauve, obovate or spathulate, 2–6 mm. long and 1–1.4 mm. wide, 1-nerved, long-persistent.
    Stamens
    Stamens 6 or 1 or lacking in apomictic specimens; filaments 1.5–3 mm. long, purple, thickened towards the base; anthers yellow to dark brown, 0.3–0.7 mm. long, the connective sometimes with a flattened conical protuberance ± 1 mm. long.
    Ovary
    Ovaries 3–8, mauve, with 2–9 ovules.
    Fruits
    Follicles greenish, 3.5–6 mm. long and ±1.5 mm. wide including a ± 1.5 mm. long narrow beak which is often dark purple at the tip.
    Seeds
    Seeds narrowly oblong-lanceolate to cylindrical, often slightly curved, 1–2 mm. long and ± 0.5 mm. wide, with a double testa, longitudinally ridged or winged, at maturity almost blackish.

    Images

    Distribution

    Native to:

    Kenya, Tanzania, Zambia, Zimbabwe

    Aponogeton afroviolaceus Lye appears in other Kew resources:

    Date Reference Identified As Barcode Type Status
    Feb 6, 1985 Lye, K.A. [6348], Kenya K000346039 isotype
    May 12, 1986 Faden, R.B. [67312], Kenya Aponogeton afroviolaceus var. angustifolius K000211091

    First published in Bot. Not. 129: 68 (1976)

    Accepted by

    • Timberlake, J.R. & Martins, E.S. (eds.) (2009). Flora Zambesiaca 12(2): 1-208. Royal Botanic Gardens, Kew.
    • Mapaura, A. & Timberlake, J. (eds.) (2004). A Checklist of Zimbabwean Vascular Plants: 1-148. Southern African Botanical Diversity Network (SABONET), Pretoria.
    • Govaerts, R. (1995). World Checklist of Seed Plants 1(1, 2): 1-483, 1-529. MIM, Deurne.
    • Lye, K.A. (1989). Aponogetonaceae Flora of Tropical East Africa: 1-10.

    Literature

    Flora of Tropical East Africa
    • H. Bruggen in Bibl. Bot. 33, 137: 50 (1985).
    • Lye in Bot. Notis. 129: 68 (1976).

    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