1. Family: Cymodoceaceae Vines
    1. Thalassodendron Hartog

      1. This genus is accepted, and its native range is Tropical & Subtropical Old World to NW. Pacific coasts.

    [FTEA]

    Cymodoceaceae, Henk Beentje. Flora of Tropical East Africa. 2002

    Habit
    Submerse aquatic herbs; rhizome robust, woody, creeping, sympodial, with 1– 2 erect unbranched or little-branched stems at every 4th internode; roots (1– )2(– 5), ± branched, only on the internode preceding the stem-bearing internode
    Stem
    Stem and branches bearing a terminal cluster of leaves
    Leaves
    Leaves with sheath compressed, ligulate and auriculate, amplexicaul, shed together with leaf, scar closed; bladelinear, margin spinulose, apex denticulate
    Flowers
    Flowers solitary and terminal on short lateral shoots, subsessile, enclosed by 4 leafy bracts Pistillate flower of 2 free ovaries, each with short style and long coiled stigmas Staminate flower of 2 anthers, dorsally connate over their length, attached at same height, each with terminal appendage; pollen filamentous
    Male
    Staminate flower of 2 anthers, dorsally connate over their length, attached at same height, each with terminal appendage; pollen filamentous
    Female
    Pistillate flower of 2 free ovaries, each with short style and long coiled stigmas
    Fruits
    Fruit a combination of the fleshy inner bract and two fertilized ovaries, one usually abortive, often germinating while still attached to the plant; seedling free-floating.

    Distribution

    Native to:

    Aldabra, Andaman Is., Caroline Is., Chagos Archipelago, Cocos (Keeling) Is., Comoros, Djibouti, Egypt, Eritrea, Iran, Jawa, Kenya, KwaZulu-Natal, Lesser Sunda Is., Madagascar, Maldives, Maluku, Mauritius, Mozambique, Mozambique Channel I, New Guinea, Palestine, Philippines, Queensland, Saudi Arabia, Seychelles, Sinai, Socotra, Solomon Is., Somalia, Sudan, Sulawesi, Tanzania, Western Australia, Yemen

    Thalassodendron Hartog appears in other Kew resources:

    First published in Verh. Kon. Ned. Akad. Wetensch., Afd. Natuurk., Sect. 2, 59(1): 186 (1970)

    Accepted by

    • Govaerts, R.H.A. (2011). World checklist of selected plant families published update Facilitated by the Trustees of the Royal Botanic Gardens, Kew.

    Literature

    Flora of Tropical East Africa
    • Sea-grasses of the World: 186 (1970)

    Sources

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