1. Family: Hydrocharitaceae Juss.
    1. Genus: Enhalus Rich.
      1. Enhalus acoroides (L.f.) Royle

        This species is accepted, and its native range is Somalia to N. Mozambique, SW. Arabian Peninsula, Indian Ocean to W. Pacific.

    [FTEA]

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

    Habit
    Stems up to 1.5 cm. in diameter, mid-brown to dark brown.
    Leaves
    Leaves 30–110(–150) cm. long, 0.7–1.7 cm. wide, bright to dark green; sheaths compressed, up to 15 cm. long, whitish, translucent and somewhat membranous.
    Bracts
    Male spathe:peduncle up to 5–10 cm. long; bracts ± 5 cm. long, ± 3 cm. wide, with somewhat inrolled margins, light brown. Female spathe:peduncle up to 50 cm. long; bracts 3–6 cm. long, 1–2 cm. wide, the margins not inrolled, brown.
    Flowers
    Male flowers with pedicels 3–12 mm. long; sepals ± 2 mm. long, ± 1 mm. wide, white; petals ± 1.75 mm. long, ± 1.25 mm. wide, white; stamens with anthers 1.5–1.75 mm. long, white. Female flower:sepals ± 1 cm. long, 0.5 cm. wide, reddish; petals 4–5 cm. long, 3–4 mm. wide, white with a reddish apex; ovary up to 5 cm. long, ± 5 mm. wide; stigmas 10–12 mm. long.
    Male
    Male flowers with pedicels 3–12 mm. long; sepals ± 2 mm. long, ± 1 mm. wide, white; petals ± 1.75 mm. long, ± 1.25 mm. wide, white; stamens with anthers 1.5–1.75 mm. long, white. Male spathe:peduncle up to 5–10 cm. long; bracts ± 5 cm. long, ± 3 cm. wide, with somewhat inrolled margins, light brown.
    Female
    Female flower:sepals ± 1 cm. long, 0.5 cm. wide, reddish; petals 4–5 cm. long, 3–4 mm. wide, white with a reddish apex; ovary up to 5 cm. long, ± 5 mm. wide; stigmas 10–12 mm. long. Female spathe:peduncle up to 50 cm. long; bracts 3–6 cm. long, 1–2 cm. wide, the margins not inrolled, brown.
    Fruits
    Fruit 2.5–5(–7) cm. long, 2.2–3 cm. wide, green or dark brown to almost black.
    Seeds
    Seeds 10–15 mm. long, ± 12 cm. wide, brown.
    Figures
    Fig. 8, p. 21.
    Habitat
    On sand or mud in sheltered water up to 4 m. deep
    Distribution
    widely distributed around coasts bordering the Indian Ocean and the western Pacific K7 T3 T6

    Images

    Distribution

    Native to:

    Andaman Is., Bismarck Archipelago, Borneo, Cambodia, Caroline Is., Hainan, India, Jawa, Kenya, Lesser Sunda Is., Madagascar, Malaya, Maldives, Maluku, Marianas, Mozambique, Myanmar, Nansei-shoto, New Caledonia, New Guinea, Nicobar Is., Northern Territory, Philippines, Queensland, Saudi Arabia, Seychelles, Solomon Is., Somalia, Sri Lanka, Sulawesi, Sumatera, Tanzania, Thailand, Vietnam, Western Australia, Yemen

    Enhalus acoroides (L.f.) Royle appears in other Kew resources:

    Date Reference Identified As Barcode Type Status
    Schweinfurth, G.A. [49], Yemen K000912609
    Thwaites, G.H.K. [2296], Sri Lanka K000912608

    First published in Ill. Bot. Himal. Mts. 1: 377 (1839)

    Accepted by

    • Wu, Z. & Raven, P.H. (eds.) (2010). Flora of China 23: 1-515. Missouri Botanical Garden Press, St. Louis.
    • Timberlake, J.R. & Martins, E.S. (eds.) (2009). Flora Zambesiaca 12(2): 1-208. Royal Botanic Gardens, Kew.
    • Pandey, R.P. & Dilwakar, P.G. (2008). An integrated check-list flora of Andaman and Nicobar islands, India Journal of Economic and Taxonomic Botany 32: 403-500.
    • National Parks Board Singapore (2006). Vascular Plant Life Checklist Pulau Ubin www.nparks.gov.sg/nparks_cms/cms/cmsmgr/data/6/PlantChkList.xls.
    • 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.
    • Kuo, J. & de Hertog, C. (2001). Seagrass taxonomy and identification key Global Seagrass Research Methods: 31-78. Elsevier Science B.V., Amsterdam.
    • Chaudhary, S.A. (2001). Flora of the Kingdom of Saudi Arabia 3: 1-368. Ministry of Agriculture & Water, Riyadh.
    • Wood, J.R.I. (1997). A Handbook of the Yemen Flora: 1-434. The Board of Trustees of the Royal Botanic Gardens, Kew.
    • Dassanayake (ed.) (1995). A Revised Handbook to the Flora of Ceylon 9: 1-482. Oxford & IBH Publishing Co. PVT. LTD., New Delhi, Calcutta.
    • Thulin, M. (ed.) (1995). Flora of Somalia 4: 1-298. The Royal Botanic Gardens, Kew.
    • 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.
    • Robertson, S.A. (1989). Flowering Plants of Seychelles: 1-327. Royal Botanic Gardens, Kew.
    • Hancock, I.R. & Henderson, C.P. (1988). Flora of the Solomon Islands Research Bulletin Dodo Creek Research Station 7: 1-203.
    • Fosberg, F.R., Sachet, M.-H., Oliver, R. (1987). A Geographical Checklist of the Micronesian Monocotyledonae Micronesica; Journal of the College of Guam 20: 19-129.
    • Walker, E.H. (1976). Flora of Okinawa and the Southern Ryukyu Islands: 1-1159. Smithsonian Insitition Press, Washington.
    • Guillaumin, A. (1948). Flore Analytique et Synoptique de la Nouvelle-Calédonie: 1-369. Office de la recherche scientifique coloniale.

    Literature

    Kew Backbone Distributions
    • Wu, Z. & Raven, P.H. (eds.) (2010). Flora of China 23: 1-515. Missouri Botanical Garden Press, St. Louis.
    • Timberlake, J.R. & Martins, E.S. (eds.) (2009). Flora Zambesiaca 12(2): 1-208. Royal Botanic Gardens, Kew.
    • Chaudhary, S.A. (2001). Flora of the Kingdom of Saudi Arabia 3: 1-368. Ministry of Agriculture & Water, Riyadh.
    • Dassanayake (ed.) (1995). A Revised Handbook to the Flora of Ceylon 9: 1-482. Oxford & IBH Publishing Co. PVT. LTD., New Delhi, Calcutta.
    • 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.
    • Hancock, I.R. & Henderson, C.P. (1988). Flora of the Solomon Islands Research Bulletin Dodo Creek Research Station 7: 1-203.
    • Fosberg, F.R., Sachet, M.-H., Oliver, R. (1987). A Geographical Checklist of the Micronesian Monocotyledonae Micronesica; Journal of the College of Guam 20: 19-129.
    • Den Hartog, C. (1970). The sea-grasses of the world Verhandelingen der Koninklijke Nederlandsche Akademie van Wetenschappen, Afdeeling Natuurkunde, Tweede Sectie 59(1): 1-275.
    Flora of Tropical East Africa
    • Hartog, Sea Grasses of the World: 215, t. 60 (1970).
    • Isaac in Journ. E. Afr. Nat. Hist. Soc. 27: 45, t. 8 (1968).
    • Asch. & Guerke in A. Engler & K. Prantl, Die Natürlichen Pflanzenfamilien 2,1: 254 (1889).
    • Royle, Ill. Bot. Himal. 1: 453 (1840).

    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 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