Beautiful fan weed (Metacallophyllis laciniata)
|Researched by||Anna Neish||Refereed by||Admin|
|Authority||(Hudson) A.Vergés & L.Le Gall, 2017|
|Other common names||-||Synonyms||Callophyllis lacinata (Hudson) Kützing, 1843|
A short soft, fleshy thallus arises and expands immediately from a small round (discoid) holdfast. The stipe is inconspicuous or absent and the crimson, brownish or purple-red fronds are much divided spreading out into wedge-shaped divisions of about 1-3 cm broad. The whole blade can be up to 15 cm long and fan-shaped with overlapping sections. Frond tips are rounded and end in tiny marginal leaflets giving a fringed appearance.
Recorded distribution in Britain and IrelandRecorded throughout the British Isles, but uncommon in the south east of England between Hampshire and Suffolk, probably due to lack of suitable substrata.
Global distributionFaeroes; Norway and Sweden to Morocco; Mediterranean.
HabitatMetacallophyllis laciniata can be commonly found attached to rock in the lower littoral and shallow sublittoral to at least 30 m. It is also often found attached to kelp stipes and holdfasts on both sheltered and exposed shores.
- Soft fleshy red thallus.
- Thallus arising immediately from holdfast.
- No conspicuous stipe.
- Repeatedly branched wedge shaped fronds displaying a fan shaped blade.
Often confused with Cryptopleura ramosa with which it often grows and can be distinguished if Cryptopleura ramosa shows iridescence as Metacallophyllis lacinata does not.
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NBN (National Biodiversity Network) Atlas. Available from: https://www.nbnatlas.org.
OBIS (Ocean Biodiversity Information System), 2023. Global map of species distribution using gridded data. Available from: Ocean Biogeographic Information System. www.iobis.org. Accessed: 2023-11-29
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Royal Botanic Garden Edinburgh, 2018. Royal Botanic Garden Edinburgh Herbarium (E). Occurrence dataset: https://doi.org/10.15468/ypoair accessed via GBIF.org on 2018-10-02.
This review can be cited as:
Last Updated: 07/11/2006