Porphyra linearis Greville
Description: Delicate, linear, membranous,
purple-brown fronds, to 200 mm long and 25 mm broad, usually
simple with short stipe from basal holdfast; orange patches when
reproductive.
Habitat: Zone-forming (below) on rock in the
upper intertidal and splash zone of semi-exposed and exposed
shores. This is a winter and spring annual appearing on
semi-exposed and exposed shores from November onwards and
persisting until February or March.

Link:
AlgaeBase
-
BioAtlantis
provides sustainable technologies from the sea to enhance
plant, animal and human health.
-
Connemara Organic Seaweed Company
provide hand harvested, sustainable, kelp and seaweed products
for human consumption through health supplements and edible
products.
-
Emerald Isle Organic Irish Seaweed.
A family business producing seaweed as supplements,
cooking, gardening and bath products.
-
Irish Seaweeds Ltd
are suppliers of 100% natural hand-harvested seaweeds and
edible sea vegetable products from Ireland.