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Chlorophyta · Green Seaweed

Ulva fenestrata

Postels & Ruprecht
Phylum
Chlorophyta
Class
Ulvophyceae
Order
Ulvales
Family
Ulvaceae

Ulva fenestrata

Sea lettuce

Authority
Postels & Ruprecht
Thallus a green blade consisting of two cell layers, commonly with numerous small holes or perforations scattered throughout, reaching 60 cm (24 in) or more tall, although frequently much smaller. Cells are 10-20 μm in diameter, and the blade can be 70 μm thick (significantly thicker than Monostroma).

Habitat

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

North Pacific Distribution

Arctic coast of Alaska to California; Japan; Russia

Former scientific names

misidentified as Ulva lactuca

Similar taxa

Kornmannia, Monostroma, Ulvaria

References

Last updated December 26, 2010

Photos