Rhodophyta · Red Seaweed

Palmaria sp.

Phylum
Rhodophyta
Class
Florideophyceae
Order
Palmariales
Family
Palmariaceae

Palmaria sp.

Alaskan False Dulse

Thallus is leathery, somewhat shiny, deep red to maroon, initially spatulate, becoming broadly lanceolate with abundant proliferous lanceolate blades developing from the margins, repeating to several orders in older thalli, which can reach 30 cm (12 in) tall.

Habitat

This perennial occurs on rock from the lowermost intertidal into the subtidal of semi-exposed to semi-protected habitats.

North Pacific Distribution

Alaska Peninsula, Alaksa from lower Cook Inlet to Cape Glazenap; Kodiak Archipelago, Alaska.

Former scientific names

misidentified as Devaleraea marginicrassa, Palmaria marginicrassa

Similar taxa

Young thalli are reminiscent of Stenogramma; older thalli are similar in shape to Develeraea firma but are larger and are not hollow.

Photos