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Rhodophyta · Red Seaweed

Pyropia kurogii

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

Pyropia kurogii

Split spring laver

Authority
(S.C.Lindstrom) S.C.Lindstrom
Thallus to 30 cm (11.8 in) tall and 15 cm (5.9 in) wide but often smaller, broadly lanceolate to nearly orbiculate, the base initially truncate, becoming strongly cordate. Fertile thalli sectored by a vertical line into female and male "halves," the former pinkish brown, the latter yellowish white. When the male sector erodes, the thallus becomes falcate.

Habitat

Mid to low intertidal, on rock or intertidal organisms such as mussels, from spring persisting into summer.

North Pacific Distribution

Central Aleutian Islands, Alaska, to British Columbia; Russia?

Former scientific names

Porphyra kurogii; misidentified as Porphhyra purpurea

Similar taxa

The invasive Porphyra purpurea has the same sectoring of the thallus, as does Boreophyllum aestivalis, which is a summer to fall species.

References

Last updated December 26, 2010

Photos