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Acetabularia major   G. Martens, 1868

Umbrella weed
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Classification / Names Common names | Synonyms | CoL | ITIS | WoRMS

Ulvophyceae | Dasycladales | Polyphysaceae

Environment: milieu / climate zone / depth range / distribution range Ecology

Epiphytic.  Tropical

Distribution Countries | FAO areas | Ecosystems | Occurrences | Introductions

Indo-Pacific: Indonesia to Taiwan, Philippines and Australia.

Length at first maturity / Size / Weight / Age

Maturity: Lm ?  range ? - ? cm

Short description Morphology

Thalli moderately calcified, consisting of a slender stalk and a terminal cap (up to 18 mm in diameter). Terminal cap made up of 63 to 85 sporangial rays, laterally attached to each other by calcification.Sporangial rays cylindrical-compressed, decreasing in diameter towards the centre of the cap, their terminal wall at the margin of the cap truncate to slightly emarginate. Distinct vertical notches present at the proximal half of the lateral walls of rays. Segments of corona superior 230 to 250 μm long, bearing 6 to 9 hairs or hair scars in an uniseriate row; segments of corona inferior 265 to 280 μm long with rounded, truncate or emarginate outer margins. Spores oval to spherical, up to 98 to 115 μm in diameter. Thalli up to 6 cm in height; the largest species among the genus Acetabularia (Ref. 80758).

Biology     Glossary (e.g. epibenthic)

Used as medicine for renal troubles (Ref. 80758). Grows in colonies on rocks, shells and dead coral fragments in moderately wave-washed habitats near shores and in shallow waters (Ref. 80758).

Life cycle and mating behavior Maturity | Reproduction | Spawning | Eggs | Fecundity | Larvae

Main reference References | Coordinator | Collaborators

Guiry, M.D. and G.M. Guiry. 2009. (Ref. 80701)

IUCN Red List Status (Ref. 120744)


CITES status (Ref. 108899)

Not Evaluated

CMS (Ref. 116361)

Not Evaluated

Threat to humans

  Harmless (Ref. 80758)

Human uses

Fisheries: commercial
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More information

Countries
FAO areas
Ecosystems
Occurrences
Introductions
Stocks
Ecology
Diet
Food items
Common names
Synonyms
Predators
Reproduction
Maturity
Spawning
Fecundity
Eggs
Egg development
Age/Size
Growth
Length-weight
Length-length
Morphology
Larvae
Abundance
References
Mass conversion

Internet sources

BHL | BOLD Systems | CISTI | DiscoverLife | FAO(Publication : search) | GenBank (genome, nucleotide) | GloBI | | Google Books | Google Scholar | Google | ispecies | PubMed | AlgaeBase | Tree of Life | Wikipedia (Go, Search) | Zoological Record

Estimates of some properties based on models

Preferred temperature (Ref. 115969): 27.6 - 29.4, mean 28.7 (based on 863 cells).
Price category (Ref. 80766)