Pelvetia canaliculata

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Pelvetia canaliculata

o Plants 80-120 mm lo, yellow-brown in colour, turni black when dry, and often so dry that the fronds disintegrate when trodden upon; regularly dichotomously branched with a disctinct channel on the underside (the side nearest the rock), which holds moisture and apparently helps the wrack to survive at very high levels on the shore. Reproduction in conceptacles visible as dots (below) on warty terminal receptacles. Usually infected by a fuus which may assist in allowi it to survive high in the intertidal. Channeled frond, regular dichotomies, height on shore. Distributionconfined to the NE Atlantic from the Faroes south to Portugal.

Location/common name:- Chanelled wrack algue à gouttière channel wrack channel-wrack channelled wrack cow tang pe

Occurri very high on the shore, generally above MHWN, on wave-exposed and sheltered shores, but absent from very exposed roacky shores. Some free-livi ecotypes (var. emlibera/em) occur in salt-marshes. confined to the NE Atlantic from the Faroes south to Portugal. lower mid-littoral