Eyelash weed (Calliblepharis ciliata)
|Researched by||Marisa Sabatini||Refereed by||Admin|
|Authority||(Hudson) Kützing, 1843|
|Other common names||-||Synonyms||-|
Recorded distribution in Britain and IrelandRecorded on the Orkneys and the coast of Yorkshire but predominently from the south east to the west coast of England, around the coast of Ireland and the west coast of Scotland.
HabitatEpilithic, occasionally epiphytic. It is found down to depths of 21 m, sometimes extending into pools in the lower littoral. It may also be found forming dense stands on muddy rocks.
- Dull red colour.
- Flat oval frond.
- Conspicuous claw like holdfast.
- Ovate shaped lobes.
- Short stem.
- The margins of the blade are fringed with branched or simple branchlets (proliferations) up to 5 mm long and can sometimes appear on the surface of the blade.
Additional informationCalliblepharis ciliata is a gametangial plant with both male and female reproductive organs. The reproductive bodies are not confined to the marginal branchlets but are equally common on those which grow out from the surface of the frond. The male reproductive structures (spermatangia) appear in large superficial sori on young blades. The female reproductive structures (cystocarps) appear as a protruding mass 1- 2 mm in diameter that become visible in September along the margins of the branchlets. The asexual reproductive structures (tetrasporangia) appear in groups of large sori on the blade surface and margins, that grow to 65 to 75 µm x 40 to 45 µm in diameter and are recorded from October to April (Dixon & Irvine, 1977).
Calliblepharis ciliata is very similar to Palmaria palmata. However, the latter has a disc shaped holdfast. Calliblepharis jubata is also similar to Calliblepharis ciliata but has several fronds arising from a branched stem and during the summer branches appear long and tendril like. Calliblepharis jubata has a thinner frond, and is normally less than 7 cm broad with longer branchlets (3 cm long). The cystoscarps of Calliblepharis jubata become visible in April, and spermatangia from June - July and mature throughout the summer, whereas Calliblepharis ciliata mature throughout the winter (Dixon & Irvine, 1977).
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Last Updated: 01/08/2005