| Family: |
Udoteaceae () |
| Max. size: |
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| Environment: |
sessile; marine; depth range 0 - 50 m |
| Distribution: |
Indian Ocean: in Tanzania, Amirante Islands and Seychelles, east to India including Maldives and Chagos Archipelago; in Andaman and Nicobar Islands; Pacific Ocean: from China to the South China Sea, south to Queensland, Australia, including Spermonde Archipelago, Guam, Federated States of Micronesia, Marshall Islands, Solomon Islands, Fiji, and Lord Howe Island, east to American Samoa. |
| Diagnosis: |
Thallus green, slightly calcified, forming thick clumps on sandy-rocky substrate in subtidal areas. Main branches terete, with successive whorls of glomeruliferous branches along the entire length at intervals of about 1 cm. Each whorl composed of 4 or 5 verticillately arranged lateral branchlets which are dichotomously branched repeatedly (6 to 7 times) in alternate planes, rarely trichotomously branched. Thallus up to 10 cm in height (Ref. 80758). |
| Biology: |
Contains norcycloartene triterpenoids (Ref. 80758). Forms clumps in rocky crevices in moderately wave-exposed shallow subtidal areas (Ref. 80758). |
| IUCN Red List Status: |
Not Evaluated (N.E.) Ref. 123251)
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| Threat to humans: |
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| Country info: |
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