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This species is accepted, and its native range is Red Sea to Madagascar, Tropical Asia to W. Pacific.
A specimen from Kew's Herbarium

[FTEA]

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

Morphology General Habit
Marine herb; rhizome delicate, each node with 1– 3 irregularly branched roots and erect stem to 6 cm long with 2– 7 leaves; internodes 1– 4.5 cm long; scales to 1 cm long.
Morphology Leaves
Leaf with sheath pale purplish, slightly obconical, 1.5– 5.5 cm long, the auriculae 0.5– 1.5 mm long, acute, the ligule 0.5 mm long; old sheaths forming a scarious mass; scar closed; blade linear, often slightly falcate, 7– 15 cm long, 2– 4(– 5) mm wide, entire, rarely slightly spinulose, apex rounded, sometimes slightly emarginate; nerves 9– 15.
Morphology Reproductive morphology Flowers
Staminate flower stalked; anthers 11 mm long. Pistillate flower of very small ovary and short style, the stigmas > 3 cm long, spirally coiled.
sex Male
Staminate flower stalked; anthers 11 mm long.
sex Female
Pistillate flower of very small ovary and short style, the stigmas > 3 cm long, spirally coiled.
Morphology Reproductive morphology Fruits
Fruit 1– 2, sessile, semicircular and laterally compressed, to 10 mm long, 6 mm wide and 1.5 mm thick, with 3 dorsal parallel ridges, the middle one with conspicuous teeth, and with 1 ventral ridge with 3– 4 teeth, beak apical, persistent, 2 mm long.
Habitat
On coral or sand, exposed at low tide or always submerged; sea-level
Distribution
from Egypt to Mozambique, Madagascar to the W Pacific and Viêt-Nam K7 T6 Z

[FSOM]

M. Thulin et al. Flora of Somalia, Vol. 1-4 [updated 2008] https://plants.jstor.org/collection/FLOS

Vegetative Multiplication Rhizomes
Rhizome fleshy and rather delicate, with 1(–2) branched roots and a short leafy shoot at each node; internodes 1–5 cm long
Morphology Leaves
Leaf sheath pale purplish, 1.5–5 cm long; blade linear, often somewhat curved, 6–10(–15) cm long, 2–4 mm wide
Morphology Reproductive morphology Flowers
Female flower with ovary and style only 5 mm long; stigmas spirally coiled, 3 cm long Male flower with 2–3 cm long stalk; anthers 11–15 mm long, crowned by a subulate process and two acute protuberances
Morphology Reproductive morphology Fruits
Fruit semicircular in outline, c. 9–10 x 5-6 mm, with dorsal, dentate ridges, varying in colour from light to dark brown.
Distribution
S3, no doubt occurring also further to the north Red Sea, coasts of the Indian Ocean and western Pacific from the Ryukyu Is. to Queensland.
Ecology
At or below low tide level.
Note
Flowers and fruits in this species have only been reported in material from the southern hemisphere.

Native to:

Aldabra, Andaman Is., Bismarck Archipelago, Borneo, Caroline Is., Comoros, Egypt, Eritrea, Hainan, India, Jawa, Kenya, Lesser Sunda Is., Madagascar, Malaya, Maluku, Mozambique, Mozambique Channel I, Myanmar, Nansei-shoto, New Caledonia, New Guinea, Nicobar Is., Palestine, Philippines, Queensland, Saudi Arabia, Sinai, Socotra, Solomon Is., Somalia, South China Sea, Sudan, Sulawesi, Tanzania, Thailand, Vanuatu, Vietnam, Yemen

Cymodocea rotundata Asch. & Schweinf. appears in other Kew resources:

Date Reference Identified As Barcode Type Status
Schweinfurth, G. [188], South Africa K000346091 Unknown type material

First published in Sitzungsber. Ges. Naturf. Freunde Berlin 1870: 84 (1870)

Accepted by

  • Andrews, F.W. (1956). The Flowering Plants of the Sudan 3: 1-579. T.Buncle & co., LTD., Arbroath, Scotland.
  • Beentje, H.J. (2002). Cymodoceaceae Flora of Tropical East Africa: 1-10.
  • Boulos, L. (1995). Flora of Egypt Checklist: i-xii, 1-287. Al Hadara Publishing, Cairo.
  • Boulos, L. (2005). Flora of Egypt 4: 1-617. Al Hadara Publishing, Cairo.
  • Chaudhary, S.A. (2001). Flora of the Kingdom of Saudi Arabia 3: 1-368. Ministry of Agriculture & Water, Riyadh.
  • Danin, A. (2004). Distribution Atlas of Plants in the Flora Palaestina area: 1-517. The Israel Academy of Sciences and Humanities, Jerusalem.
  • 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.
  • Dobignard, D. & Chatelain, C. (2010). Index synonymique de la flore d'Afrique du nord 1: 1-455. Éditions des conservatoire et jardin botaniques, Genève.
  • Edwards, S., Demissew, S. & Hedberg, I. (eds.) (1997). Flora of Ethiopia and Eritrea 6: 1-586. The National Herbarium, Addis Ababa University, Ethiopia & The Department of Systematic Botany, Upps.
  • 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.
  • Govaerts, R. (1999). World Checklist of Seed Plants 3(1, 2a & 2b): 1-1532. MIM, Deurne.
  • Guillaumin, A. (1948). Compendium de la Flore Phanérogamique des Nouvelles Hébrides Annales de l'Institut Botanico-Geologique Colonial de Marseille, VI, 5-6: 1-56.
  • Guillaumin, A. (1948). Flore Analytique et Synoptique de la Nouvelle-Calédonie: 1-369. Office de la recherche scientifique coloniale.
  • H?, P.-H. (1993). Câyc? Vi?tnam. An Illustrated flora of Vietnam 3(1): 1-603d. Pham-hoang Ho, Montréal.
  • Hancock, I.R. & Henderson, C.P. (1988). Flora of the Solomon Islands Research Bulletin Dodo Creek Research Station 7: 1-203.
  • Iwatsuki, K., Boufford, D.E. & Ohba, H. (eds.) in Ohwi, J. (2020). Flora of Japan (in English) IVa: 1-430. Smithsonian Institution, Washington, D.C.
  • Jumelle, H. (1950). Flore de Madagascar et des Comores (Plantes Vasculaires) 21-22 Typographie Firmin-Didot et Cie., Paris.
  • Karthikeyan, S., Jain, S.K., Nayar, M.P. & Sanjappa, M. (1989). Florae Indicae Enumeratio: Monocotyledonae: 1-435. Botanical Survey of India, Calcutta.
  • 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.
  • Miller, A.G. & Morris, M. (2004). Ethnoflora of Soqotra Archipelago: 1-759. The Royal Botanic Garden, Edinburgh.
  • National Parks Board Singapore (2006). Vascular Plant Life Checklist Pulau Ubin www.nparks.gov.sg/nparks_cms/cms/cmsmgr/data/6/PlantChkList.xls.
  • 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.
  • Robertson, S.A. (1989). Flowering Plants of Seychelles: 1-327. Royal Botanic Gardens, Kew.
  • Thulin, M. (ed.) (1995). Flora of Somalia 4: 1-298. The Royal Botanic Gardens, Kew.
  • Timberlake, J.R. & Martins, E.S. (eds.) (2009). Flora Zambesiaca 12(2): 1-208. Royal Botanic Gardens, Kew.
  • Walker, E.H. (1976). Flora of Okinawa and the Southern Ryukyu Islands: 1-1159. Smithsonian Insitition Press, Washington.
  • Wood, J.R.I. (1997). A Handbook of the Yemen Flora: 1-434. The Board of Trustees of the Royal Botanic Gardens, Kew.
  • Wu, Z. & Raven, P.H. (eds.) (2010). Flora of China 23: 1-515. Missouri Botanical Garden Press, St. Louis.

Literature

Kew Backbone Distributions

  • Danin, A. (2004). Distribution Atlas of Plants in the Flora Palaestina area: 1-517. The Israel Academy of Sciences and Humanities, Jerusalem.
  • Edwards, S., Demissew, S. & Hedberg, I. (eds.) (1997). Flora of Ethiopia and Eritrea 6: 1-586. The National Herbarium, Addis Ababa University, Ethiopia & The Department of Systematic Botany, Upps.
  • Guillaumin, A. (1948). Compendium de la Flore Phanérogamique des Nouvelles Hébrides Annales de l'Institut Botanico-Geologique Colonial de Marseille, VI, 5-6: 1-56.
  • Hancock, I.R. & Henderson, C.P. (1988). Flora of the Solomon Islands Research Bulletin Dodo Creek Research Station 7: 1-203.
  • Jumelle, H. (1950). Flore de Madagascar et des Comores (Plantes Vasculaires) 21-22 Typographie Firmin-Didot et Cie., Paris.
  • 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.
  • Miller, A.G. & Morris, M. (2004). Ethnoflora of Soqotra Archipelago: 1-759. The Royal Botanic Garden, Edinburgh.
  • Robertson, S.A. (1989). Flowering Plants of Seychelles: 1-327. Royal Botanic Gardens, Kew.
  • Thulin, M. (ed.) (1995). Flora of Somalia 4: 1-298. The Royal Botanic Gardens, Kew.
  • Timberlake, J.R. & Martins, E.S. (eds.) (2009). Flora Zambesiaca 12(2): 1-208. Royal Botanic Gardens, Kew.
  • Wu, Z. & Raven, P.H. (eds.) (2010). Flora of China 23: 1-515. Missouri Botanical Garden Press, St. Louis.

Flora of Somalia

  • Flora Somalia, Vol 4, (1995) Author: by G. Sartoni [updated by M. Thulin 2008]

Flora of Tropical East Africa

  • A. Benn. in Flora of Tropical Africa 8: 230 (1901).
  • Asch. & Schweinf. in Sitz. Ges. Nat. Freunde Berlin 1870: 84 (1870).
  • Bandeira in Guide Seashores E. Africa: 66, fig. (1997).
  • E. Cohen in S. Afr. Journ. Sci. 36: 246, 247 (1939).
  • Hartog, Sea-grasses of the World: 166, fig. 47, 49b (1970).
  • Isaac in Journ. E. Afr. Nat. Hist. Soc. 27 (1): 36, t. 4a– b (1968).
  • Jumelle in Fl. Madag. 21: 14 (1950).
  • Moorjani & B. Simpson, Seaweeds Kenya Coast: 8, t. 1b (1988).
  • T. Durand & Schinz, Consp. Fl. Afr. 5: 501 (1894).

Flora of Somalia
Flora of Somalia
http://creativecommons.org/licenses/by-nc-sa/3.0

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

Herbarium Catalogue Specimens
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 2021. 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 2021. 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