1. Family: Aponogetonaceae Planch.
    1. Genus: Aponogeton L.f.
      1. Aponogeton stuhlmannii Engl.

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

    [FTEA]

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

    Habit
    Plants monoecious.
    Tubers
    Tuber globular to conical, 6–12 mm. long and 4–10 mm. in diameter, with very numerous whitish slender roots.
    Leaves
    Leaves usually 5–10 per tuber; petiole 5–20 cm. long and 0.2–0.6 mm. thick; blade narrowly oblong to lanceolate, 2–5 cm. long and 4–10 mm. wide, with 5–9 parallel lateral nerves, floating on the surface of the water; base cuneate to truncate, tip obtuse; primary leaves occasionally produced, 1–2 cm. long, linear, without blade.
    Flowers
    Flowers white, often drying a bluish white, rather laxly set on unbranched somewhat unilateral spikes on slender peduncles; peduncles 5–15 cm. long and 1–1.5 mm. thick above, green but inflorescence-axis and base white; spathe 6–10 mm. long, greenish, usually early caducous.
    Inflorescences
    Spike 1–2 cm. long and 5–10 mm. wide with tepals spreading, the flowers usually inserted on one side of the axis, but at maturity often more cylindrical, only 7–15-flowered.
    Tepal
    Tepals 2, white and shiny, but often with a lilac tinge, ligulate, 3.5–5.5 mm. long and 1–2 mm. wide, 1-nerved.
    Stamens
    Stamens 6; filaments 2–2.5 mm. long, lilac but whitish near the thicker base; anthers 0.5–0.6 mm. long and 0.3–0.4 mm. wide, brownish yellow, but turning black when withering.
    Ovary
    Ovaries 2–4, green with 2–10 ovules.
    Fruits
    Follicles green to somewhat bluish (but beak whitish at least near die tip), 2–3 mm. long, including a ± 1 mm. long curved beak, and 0.5–0.6 mm. wide.
    Seeds
    Seeds elliptic, 1.5–2.5 mm. long and ± 0.5 mm. wide, with a double testa, not longitudinally ridged.
    Habitat
    Temporary shallow rain-pools, often in rock-pavements; 550–1650 m.
    Distribution
    K1 K4 K7 T1 T2 T5

    Images

    Distribution

    Native to:

    Botswana, Kenya, Namibia, Northern Provinces, Rwanda, Tanzania, Zambia, Zimbabwe

    Aponogeton stuhlmannii Engl. appears in other Kew resources:

    Date Reference Identified As Barcode Type Status
    Apr 9, 1972 Richards, H.M. [9178], Zambia K000346047
    Greenway, P.J. [9987], Tanzania 1293.000
    Rehmann, A. [5761], South Africa K000346057
    Rehmann, A. [5761], South Africa K000346056 Unknown type material

    First published in Notizbl. Königl. Bot. Gart. Berlin 1: 26 (1895)

    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.
    • Germishuizen, G. & Meyer, N.L. (eds.) (2003). Plants of Southern Africa: an annotated checklist. Strelitzia 14.: i-vi, 1-1231. National Botanical Institute, 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.
    • van Bruggen, H.W.E. (1974). Flore d'Afrique Centrale (Zaïre - Rwanda - Burundi) Aponogetonaceae: 1-11. Jardin Botanique National de Belgique, Meise.

    Literature

    Kew Backbone Distributions
    • van Bruggen, H.W.E. (1974). Flore d'Afrique Centrale (Zaïre - Rwanda - Burundi) Aponogetonaceae: 1-11. Jardin Botanique National de Belgique, Meise.
    Flora of Tropical East Africa
    • H. Bruggen in Bibl. Bot. 33, 137: 40 (1985).
    • H. Bruggen in Flore d'Afrique Centrale: 4 (1974).
    • Lye in A.D.Q. Agnew, Upland Kenya Wild Flowers p. 652 (1974).
    • H. Bruggen in Bulletin du Jardin Botanique National de Belgique 43: 201, fig. 4/2 (1973)
    • Obermeyer in Flora of Southern Africa 1: 90, fig. 27/2 (1966).
    • Podlech in Prodr. Fl. SW.-Afr. 143: 3 (1966).
    • Peter in Flora von Deutsch-Ostafrika 1: 117 (1929).
    • Peter in Abh. K. Ges. Wiss. Göttingen 13(2): 40 (1928)
    • K. Krause in A. Engler, Das Pflanzenreich IV. 13: 12, fig. 9 N–Q (1906).
    • A. Bennett in Flora of Tropical Africa 8: 218 (1901).
    • Engl. in Die Pflanzenwelt Ost-Afrikas und der Nachbargebiete, Theile C: 94 (1895).
    • Engl. in Notizblatt des Botanischen Gartens und Museums zu Berlin-Dahelm 1: 26 (1895)

    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 2020. 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 2020. 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