Phycodrys rubens (Linnaeus) Batters
Description: Flattened, leafy, purple-crimson fronds, to 300 mm long. Cylindrical stipe continues as midrib of elliptical or ovate blade, membranous and monstromatic except for pinnate paired lateral veins extending into lobes of blade. Marginal lobes grow into secondary blades, which may in turn develop tertiary blades,each sinuate or lobed like oak leaf. Margin sinuous, toothed or drawn out into slender, much divided processes.
Habitat: On rock or epiphytic, especially on Laminaria hyperborea stipes, lower intertidal pools and subtidal, generally distributed, common.