Agardhiella coulteri (Harv.) Setchell
Annotated by Robert F. Scagel.

Washington: San Juan: At the south end of Shaw Island, near Canoe Island.
48.566667° N, 122.916667° W,
Coordinate Source: Specimen Label.
On rocks in the subtidal zone to a depth of 5 fathoms.; rock. HerbariumSpecimenDuplicate: Agardhiella coulteri 14
Thallus up to 35cm high, brownish red to deep red in colour, with a few main axes and numerous shorter laterals tending to lie in one plane. All orders of branching terete, generally 3-5mm in diameter but frequently up to 5mm in main branches and at the base. Thallus cartilaginous. Https://oregonflora.org/collections/individual/index.php?occid=4682044.

Robert F. Scagel 18, 1955-6-27
OSC, Catalog: OSC-A-011252