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Chlorophyta · Green Seaweed

Prasiola borealis

M. Reed
Phylum
Chlorophyta
Class
Trebouxiophyceae
Order
Prasiolales
Family
Prasiolaceae

Prasiola borealis

Northern emerald carpet

Authority
M. Reed
Thallus is a small (up to 10 mm or 0.4 in tall), dark olive green blade, which is infected by the fungus Guignardia alaskana M. Reed. The blades have short stalks basally, are broader than tall, often with curled edges. Cells are clustered in groups of four or more with spaces between groups of cells.

Habitat

This species forms extensive carpets on supratidal bedrock of protected to exposed shores.

North Pacific Distribution

Aleutian Islands, Alaska, to British Columbia; Russia

Former scientific names

Mastodia borealis

Similar taxa

Prasiola meridionalis

References

Last updated December 26, 2010

Photos