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Chlorophyta · Green Seaweed

Acrosiphonia duriuscula

(Ruprecht) Yendo
Phylum
Chlorophyta
Class
Ulvophyceae
Order
Ulotrichales
Family
Ulotrichaceae

Acrosiphonia duriuscula

Northern green rope

Authority
(Ruprecht) Yendo
Thallus is green, growing in tufts 2-15 cm (1-6 in) tall, composed of branched, interwoven, uniseriate filaments, ususally without hook-like branchlets or rhizoids. Cells to 150-200 μm diameter, sometimes shorter than broad, overall aspect is usually spreading, but the species occasionally forms dense, ropelike tangles.

Habitat

This species is an annual found on rock in the low intertidal of semi-protected to semi-exposed habitats.

North Pacific Distribution

Aleutian Islands, Alaska to northern British Columbia; Japan; Russia

Former scientific names

Spongomorpha duriuscula

Similar taxa

Acrosiphonia spp.

References

Last updated December 26, 2010

Photos