Rhodophyta · Red Seaweed

Pyropia unabbottiae

S.C.Lindstrom
Phylum
Rhodophyta
Class
Florideophyceae
Order
Bangiales
Family
Bangiaceae

Pyropia unabbottiae

False black seaweed

Authority
S.C.Lindstrom
Thallus to 30 cm (11.8 in) tall and 20 cm (7.9 in) wide but usually smaller, broadly lanceolate to nearly orbiculate, margins very strongly ruffled. Center of blade greenish whereas rest of blade dusky pink or purplish.

Habitat

Usually occurring in the lower mid intertidal on bedrock and boulders in areas subjected to some oceanic swell in spring and early summer; it has also been found growing epiphytically on Fucus.

North Pacific Distribution

Aleutian Islands, Alaska, to southern British Columbia

Similar taxa

The species is difficult to distinguish from Pyropia abbottiae; it is slightly softer and can occur epiphytically, which has never been reported for P. abbottiae.

Last updated December 26, 2010

Photos