Halodule

Halodule is a genus of plants in the family Cymodoceaceae described as a genus in 1841.^[2][3] It is widespread on tropical and semi-tropical ocean shores of all continents except Europe and Antarctica.^{[1][4][5][6][7]}

Halodule
Scientific classification
Kingdom:	Plantae
Clade:	Tracheophytes
Clade:	Angiosperms
Clade:	Monocots
Order:	Alismatales
Family:	Cymodoceaceae
Genus:	Halodule Endl.
Synonyms[1]
Diplanthera Thouars 1806 not Gleditsch 1764 (Acanthaceae) nor Banks & Sol. ex R. Br. 1810 (syn of Deplanchea in Bignoniaceae) nor Schrank 1819 (Acanthaceae) nor Raf. 1833 (syn of Platanthera in Orchidaceae)

Species

Hybridization has been reported in the Pacific between H. pinifolia and H. uninervis.^[8]

There are six recognised species:^[1]

• Halodule bermudensis - Bermuda
• Halodule ciliata - Panama
• Halodule emarginata - SE Brazil
• Halodule pinifolia - India, Sri Lanka, Southeast Asia, Hainan, Taiwan, Ryukyu Islands, New Guinea, Queensland, Fiji, New Caledonia, Tonga, Caroline Islands
• Halodule uninervis - shores of Indian + Pacific Oceans, Red Sea, Persian Gulf, Bay of Bengal, Papuasia, Queensland, Micronesia
• Halodule wrightii - Atlantic Ocean shores including Caribbean + Gulf of Mexico: Africa (Senegal, Mauritania, Angola), West Indies, South America (Venezuela, Brazil), Mexico, Central America, United States (TX LA MS AL FL NC MD)