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Chlorophyta · Green Seaweed

Ulva smaragdina

(Kützing) Hughey, Maggs, L.M.Loos, S.A.Harris & P.W.Gabrielson
Phylum
Chlorophyta
Class
Ulvophyceae
Order
Ulvales
Family
Ulvaceae

Ulva smaragdina

Green string lettuce

Authority
(Kützing) Hughey, Maggs, L.M.Loos, S.A.Harris & P.W.Gabrielson
There is no doubt recognizing this distinctive species. The bright green thallus is tubular at the base but flattened above. It grows into long, narrow, ruffled blades two cell layers thick, 1-4 cm (0.4-1.6 in) wide and up to 45 cm tall. Cells are 10-15 μm diameter.

Habitat

This species is found in the mid to low intertidal on cobble, boulders, and bedrock. It prefers protected and semi-protected habitats.

North Pacific Distribution

Eastern Aleutian Islands, Alaska to Baja California, Mexico

Former scientific names

misidentified as Ulva linza

Similar taxa

Ulva californica, U. intestinalis, U. prolifera

References

Last updated December 26, 2010

Photos