1. Family: Hydrocharitaceae Juss.
    1. Genus: Ottelia Pers.
      1. Ottelia alismoides (L.) Pers.

        This species is accepted, and its native range is Tropical & Subtropical Asia to N. Australia.

    [FTEA]

    Hydrocharitaceae, David Simpson. Flora of Tropical East Africa. 1989

    Habit
    Monoecious, dioecious or hermaphrodite, annual or perennial.
    Stem
    Stems corm-like, simple or rarely forked.
    Leaves
    Juvenile leaves linear to obovate or spathulate. Mature leaves petiolate; blade submerged or floating, elliptic to widely ovate, 8–17 cm. long, 5.7–20 cm. wide, acute to obtuse or rounded, cuneate to cordate or somewhat involute at base, smooth, with 2–10 prominent longitudinal veins connected by cross-veins, together with many smaller longitudinal veins; leaf-margins entire or denticulate.
    Scales
    Nodal scales 4–10 per leaf, ovoid to conical.
    Bracts
    Spathe:peduncle 10–50 cm. long, 0.17–0.5 cm. wide; body of spathe submerged, sometimes slightly inflated, cylindric to ellipsoid or urceolate, 2–6-lobed at the apex, with 3–12 crisped or wavy wings or ribs.
    Flowers
    Male flowers several per spathe, with pedicels up to 7 cm. long; ♀ and hermaphrodite flowers sessile.
    Calyx
    Sepals narrowly triangular to ovate, 0.6–2.4 cm. long, 1.8–5.7(–9) mm. wide, subobtuse to rounded, green, the margin often hyaline.
    Corolla
    Petals ovate to orbicular, 1.8–3 cm. long, 0.5–1 cm. wide, rounded or obcordate, white, white with yellow base, yellow, pink to purple.
    Stamens
    Stamens 3–12; anthers 2.5–4.5 mm. long, yellowish; filaments up to 6 mm. long; staminodes filiform or 2-lobed, up to 4.8 cm. long.
    Pistil
    Ovary of 3–10 carpels, narrowly ellipsoid, 0.7–2.2 cm. long, ± 0.7 cm. wide; perianth-tube 0.6–0.8 cm. long, styles 3–10; stigmas 6–20, up to 6 mm. long, yellowish.
    Fruits
    Fruit ellipsoid to ovoid, rarely cylindric, 1.5–4(–5) cm. long, 1–2 cm. wide, opening by decay of the pericarp.
    Seeds
    Seeds narrowly cylindric, 0.9–1.3 mm. long, 0.3–0.5 mm. wide, dark purple to black, with longitudinal striations.
    Habitat
    Still or moving water up to 1 m. deep; 1050–1110 m.
    Distribution
    widespread throughout India, E. and SE. Asia and northern Australia as well as scattered localities in Europe, W. Asia and North America T2

    Images

    Distribution

    Native to:

    Assam, Bangladesh, Borneo, Cambodia, China North-Central, China South-Central, China Southeast, Hainan, India, Japan, Jawa, Khabarovsk, Korea, Lesser Sunda Is., Malaya, Maluku, Manchuria, Myanmar, Nansei-shoto, Nepal, New Guinea, Northern Territory, Philippines, Primorye, Queensland, Solomon Is., Sri Lanka, Sulawesi, Sumatera, Taiwan, Thailand, Vietnam

    Introduced into:

    California, Egypt, Iraq, Italy, Louisiana, Sudan, Tanzania

    Ottelia alismoides (L.) Pers. appears in other Kew resources:

    Date Reference Identified As Barcode Type Status
    Jan 1, 1935 Oldham, R. [829], Japan K000912617
    Polhill, R. [2389], Tanzania 33297.000
    Buckley, J.C., India 34422.000
    Thorel, C. [1327], Vietnam K000291357 isotype

    First published in Syn. Pl. 1: 400 (1805)

    Accepted by

    • Darbyshire, I., Kordofani, M., Farag, I., Candiga, R. & Pickering, H. (eds.) (2015). The Plants of Sudan and South Sudan: 1-400. Kew publishing, Royal Botanic Gardens, Kew.
    • Chang, C.S., Kim, H. & Chang, K.S. (2014). Provisional checklist of vascular plants for the Korea peninsula flora (KPF): 1-660. DESIGNPOST.
    • Wu, Z. & Raven, P.H. (eds.) (2010). Flora of China 23: 1-515. Missouri Botanical Garden Press, St. Louis.
    • Dobignard, D. & Chatelain, C. (2010). Index synonymique de la flore d'Afrique du nord 1: 1-455. Éditions des conservatoire et jardin botaniques, Genève.
    • Boulos, L. (2005). Flora of Egypt 4: 1-617. Al Hadara Publishing, Cairo.
    • Kress, W.J., DeFilipps, R.A., Farr, E. & Kyi, D.Y.Y. (2003). A Checklist of the Trees, Shrubs, Herbs and Climbers of Myanmar Contributions from the United States National Herbarium 45: 1-590.
    • Flora of North America Editorial Committee (2000). Flora of North America North of Mexico 22: 1-352. Oxford University Press, New York, Oxford.
    • Lee, W.T. (1996). Lineamenta Florae Koreae: 1-1688. Soul T'ukpyolsi: Ak'ademi Sojok.
    • Boulos, L. (1995). Flora of Egypt Checklist: i-xii, 1-287. Al Hadara Publishing, Cairo.
    • Czerepanov, S.K. (1995). Vascular Plants of Russia and Adjacent States (The Former USSR): 1-516. Cambridge University Press.
    • Dassanayake (ed.) (1995). A Revised Handbook to the Flora of Ceylon 9: 1-482. Oxford & IBH Publishing Co. PVT. LTD., New Delhi, Calcutta.
    • Noltie, H.J. (1994). Flora of Bhutan 3(1): 1-456. Royal Botanic Gardens, Edinburgh.
    • H?, P.-H. (1993). Câyc? Vi?tnam. An Illustrated flora of Vietnam 3(1): 1-603d. Pham-hoang Ho, Montréal.
    • Simpson, D. (1989). Hydrocharitaceae Flora of Tropical East Africa: 1-29.
    • Karthikeyan, S., Jain, S.K., Nayar, M.P. & Sanjappa, M. (1989). Florae Indicae Enumeratio: Monocotyledonae: 1-435. Botanical Survey of India, Calcutta.
    • Hancock, I.R. & Henderson, C.P. (1988). Flora of the Solomon Islands Research Bulletin Dodo Creek Research Station 7: 1-203.
    • Kharkevich, S.S. (ed.) (1987). Plantae Vasculares Orientalis Extremi Sovietici 2: 1-448. Nauka, Leningrad.
    • Khan, M.S. & Mahbuba Halim (1985). Flora of Bangladesh 28: 1-15. Bangladesh National Herbarium, Dhaka.
    • Townsend, C.C. & Guest, E. (eds.) (1985). Flora of Iraq 8: 1-440. Ministry of Agriculture & Agrarian Reform, Baghdad.
    • Ohwi, J. (1984). Flora of Japan (in English): 1-1067. Smithsonian Institution, Washington, D.C.
    • Tutin, T.G. & al. (eds.) (1980). Flora Europaea 5: 1-452. Cambridge University Press.
    • Smitinand, T. & Larsen, K. (eds.) (1978). Flora of Thailand 1: 1-694. The Forest Herbarium, National Park, Wildlife and Plant Conservation Department, Bangkok.
    • Hara, H., Stearn, W.T. & Williams, H.J. (1978). An Enumeration of the Flowering Plants of Nepal 1: 1-154. Trustees of British Museum, London.
    • Walker, E.H. (1976). Flora of Okinawa and the Southern Ryukyu Islands: 1-1159. Smithsonian Insitition Press, Washington.
    • Andrews, F.W. (1956). The Flowering Plants of the Sudan 3: 1-579. T.Buncle & co., LTD., Arbroath, Scotland.
    • Van Steenis, C.G.G.J. (ed.) (1955-1958). Flora Malesiana 5: 1-595. Noordhoff-Kolff N.V., Djakarta.

    Literature

    Kew Backbone Distributions
    • GBIF (2008- continuously updated). Global Biodiversity Information Facility http://www.gbif.org/.
    • Kress, W.J., DeFilipps, R.A., Farr, E. & Kyi, D.Y.Y. (2003). A Checklist of the Trees, Shrubs, Herbs and Climbers of Myanmar Contributions from the United States National Herbarium 45: 1-590.
    • Flora of North America Editorial Committee (2000). Flora of North America North of Mexico 22: 1-352. Oxford University Press, New York, Oxford.
    • Boulos, L. (1995). Flora of Egypt Checklist: i-xii, 1-287. Al Hadara Publishing, Cairo.
    • Dassanayake (ed.) (1995). A Revised Handbook to the Flora of Ceylon 9: 1-482. Oxford & IBH Publishing Co. PVT. LTD., New Delhi, Calcutta.
    • Noltie, H.J. (1994). Flora of Bhutan 3(1): 1-456. Royal Botanic Gardens, Edinburgh.
    • H?, P.-H. (1993). Câyc? Vi?tnam. An Illustrated flora of Vietnam 3(1): 1-603d. Pham-hoang Ho, Montréal.
    • Simpson, D. (1989). Hydrocharitaceae Flora of Tropical East Africa: 1-29.
    • Kharkevich, S.S. (ed.) (1987). Plantae Vasculares Orientalis Extremi Sovietici 2: 1-448. Nauka, Leningrad.
    • Khan, M.S. & Mahbuba Halim (1985). Flora of Bangladesh 28: 1-15. Bangladesh National Herbarium, Dhaka.
    • Townsend, C.C. & Guest, E. (eds.) (1985). Flora of Iraq 8: 1-440. Ministry of Agriculture & Agrarian Reform, Baghdad.
    • Cook, C.D.K. & Urumi-König, K. (1984). A revision of the genus Ottelia (Hydrocharitaceae). 2. The species of Eurasia, Australasia and America Aquatic Botany 20: 131-177.
    • Ohwi, J. (1984). Flora of Japan (in English): 1-1067. Smithsonian Institution, Washington, D.C.
    • Tutin, T.G. & al. (eds.) (1980). Flora Europaea 5: 1-452. Cambridge University Press.
    • Smitinand, T. & Larsen, K. (eds.) (1978). Flora of Thailand 1: 1-694. The Forest Herbarium, National Park, Wildlife and Plant Conservation Department, Bangkok.
    • Hara, H., Stearn, W.T. & Williams, H.J. (1978). An Enumeration of the Flowering Plants of Nepal 1: 1-154. Trustees of British Museum, London.
    • Walker, E.H. (1976). Flora of Okinawa and the Southern Ryukyu Islands: 1-1159. Smithsonian Insitition Press, Washington.
    • Andrews, F.W. (1956). The Flowering Plants of the Sudan 3: 1-579. T.Buncle & co., LTD., Arbroath, Scotland.
    • Van Steenis, C.G.G.J. (ed.) (1955-1958). Flora Malesiana 5: 1-595. Noordhoff-Kolff N.V., Djakarta.
    Flora of Tropical East Africa
    • Cook & Urmi-König in Aquat. Bot. 20: 131, fig. 1, 2 (1984).
    • Wright in Flora of Tropical Africa 7: 6 (1897).
    • Pers., Syn. Pl. 1: 400 (1805).

    Sources

    Flora of Tropical East Africa
    Flora of Tropical East Africa
    http://creativecommons.org/licenses/by-nc-sa/3.0

    Herbarium Catalogue Specimens
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    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 2018. 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 2018. 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