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Ochrophyta · Brown Seaweed

Punctaria lobata

(D.A.Saunders) Setchell & N.L.Gardner
Phylum
Ochrophyta
Class
Phaeophyceae
Order
Ectocarpales
Family
Chordariaceae

Punctaria lobata

Eelgrass brown blade

Authority
(D.A.Saunders) Setchell & N.L.Gardner
The thallus is a small, pale to dark olive brown blade, 10 cm or more tall, with margins smooth or irregularly to deeply lobed, and is 2-4 cell layers thick, with medullary (central) cells no more than 2-3 times the size of cortical (outer) cells. The outer cells have numerous discoidal chloroplasts and pyrenoids.

Habitat

This summer ephemeral occurs as an epiphyte on Zostera marina in the mid intertidal to shallow subtidal of protected habitats.

North Pacific Distribution

Kodiak Archipelago to Southeast Alaska

Former scientific names

Homeostroma lobatum

Similar taxa

Petalonia, young Saccharina

References

Last updated December 26, 2010

Photos