Higher Classification: > Kingdom Plantae > Subkingdom Biliphyta > Division Rhodophyta > Subdivision Eurhodophytina > Class Florideophyceae > Subclass Corallinophycidae > Order Hapalidiales > Family Hapalidiaceae > Genus Phymatolithon

Phymatolithon calcareum (Pallas) W.H.Adey & D.L.McKibbin ex Woelkering & L.M.Irvine, 1986

Rank: Species
Taxon Status: accepted

Relationships towards this taxon

Genus group names

*Phymatolithon*	Foslie, 1898	accepted genus name
*Leptophytum*	W.H.Adey, 1966	synonym
*Nullipora*	J.B.de Lamarck, 1801	synonym

Species group names

*Lithothamnion calcareum*	(Pallas) Areschoug, 1852	synonym
*Lithothamnion hamelii*	Me.Lemoine, 1931	synonym
*Melobesia polymorpha*	Harvey, 1851	synonym
*Millepora calcarea*	Pallas, 1766	synonym
*Millepora polymorpha*	Linnaeus, 1767	synonym
*Phymatolithon polymorphum*	Foslie, 1898	synonym

Vernaculars (+) (-)

English: common maërl; maerl sources: PESI (A Pan-European Species directories Infrastructure) focal points;MarLIN. (2006). BIOTIC - Biological Traits Information Catalogue. Marine Life Information Network. Plymouth: Marine Biological Association of the United Kingdom.

Norwegian Bokmål: buttgreinet mergel sources: PESI (A Pan-European Species directories Infrastructure) focal points

Norwegian Nynorsk: buttgreina mergel sources: PESI (A Pan-European Species directories Infrastructure) focal points

Swedish: grenig kalkskorpa

Literature

basis of record	Guiry, M.D. & Guiry, G.M. (2025). AlgaeBase. World-wide electronic publication, National University of Ireland, Galway. searched on YYYY-MM-DD.
basis of record	Guiry, M.D. (2001). Macroalgae of Rhodophycota, Phaeophycota, Chlorophycota, and two genera of Xanthophycota, in: Costello, M.J. et al. (Ed.) (2001). European register of marine species: a check-list of the marine species in Europe and a bibliography of guides to their identification. Collection Patrimoines Naturels, 50: pp. 20-38
additional source	Guiry, M.D. & Guiry, G.M. (2025). AlgaeBase. World-wide electronic publication, National University of Ireland, Galway. searched on YYYY-MM-DD.
additional source	Linkletter, L. E. (1977). A checklist of marine fauna and flora of the Bay of Fundy. Huntsman Marine Laboratory, St. Andrews, N.B. 68: p.

Genbank

Taxonomy

Published in AlgaeBase

External Links

Marine Life Information Network - UK

Citation

Guiry, M.D. & Guiry, G.M. (2025). AlgaeBase. World-wide electronic publication, National University of Ireland, Galway (taxonomic information republished from AlgaeBase with permission of M.D. Guiry). Phymatolithon calcareum (Pallas) W.H.Adey & D.L.McKibbin ex Woelkering & L.M.Irvine, 1986. Via: Costello, M.J.; Bouchet, P.; Boxshall, G.; Arvantidis, C.; Appeltans, W. (2011) European Register of Marine Species, Accessed through PESI at http://www.eu-nomen.eu/portal/taxon.php?GUID=urn:lsid:marinespecies.org:taxname:145199