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Chlorophyta · Green Seaweed

Pseudothrix borealis

Hanic & S.C.Lindstrom
Phylum
Chlorophyta
Class
Ulvophyceae
Order
Ulotrichales
Family
Ulotrichaceae

Pseudothrix borealis

False northern thread

Authority
Hanic & S.C.Lindstrom
Thallus is an emerald green tube to 10 cm tall and very narrow (~ 1 mm diam.). Cells are small (3-6 mm diam.), rounded, often in groups of 2 or 4 basally, larger (~15 mm diam.) at distal end of thallus.

Habitat

This species is found on mid to lower intertidal boulders and bedrock in spring and early summer.

North Pacific Distribution

Bering Sea and Aleutian Islands, Alaska to southern British Columbia; Korea; Japan; Russia

Similar taxa

Rosenvingiella, Ulothrix, Urospora

References

Last updated December 26, 2010

Photos