Rama rupestris (Linnaeus) Boedeker, M.J.Wynne & Zuccarello
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Previously widely known as Cladophora rupestris (Linnaeus) Kützing
Description: Thallus dark green (sometimes
bluish), stiff, entwined, to 200 mm in length, composed of
profusely, irregularly branched filaments apparent to the
unaided eye. Attached by a rhizoidal holdfast. Persists
throughout the year.
Habitat: on rock and in pools from mid-tide
downwards, often growing under
Fucus vesiculosusor
Ascophyllum nodosum
but such plants are generally smaller and darker. Common and
widespread.
Key characteristics: dark green colour
species of Cladophora and
Spongomorpha aeruginosa
are more grass-green in colour), stiff filaments.
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