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Rhodophyta · Red Seaweed

Plocamium pacificum

Kylin
Phylum
Rhodophyta
Class
Florideophyceae
Order
Plocamiales
Family
Plocamiaceae

Plocamium pacificum

Sea comb

Authority
Kylin
Thallus to at least 10 cm tall (3.9 in), abundantly branched in a somewhat zigzag manner, to 3-4 orders, with penultimate branches curving outward and bearing pectinate branchlets. Deep purplish red to rosy pink.

Habitat

Low intertidal and more commonly subtidal, epilithic, epiphytic or epizoic, often associated with sand.

North Pacific Distribution

Southeast Alaska to Baja California, Mexico

Former scientific names

Plocamium coccineum var. pacificum, Plocamium cartilagineum var. pacificum; misidentified as Plocamium cartilagineum, Plocamium coccineum

Similar taxa

This species resembles Ceramothamnion coulteri, a species yet to be reported from Alaska.

References

Last updated December 26, 2010

Photos