Erythrophyllum delesserioides J.Agardh
Annotated by Robert F. Scagel.

Washington: Clallam: Waadah Island, entrance to Neah Bay.
48.383333° N, 124.6° W,
Coordinate Source: Specimen Label.
On rocks in the lower intertidal and upper subtidal zones.; rock. Thallus comprising one or more erect blades, attached to the substratum by a discoid holdfast. The blade may be simple or slightly branched from the margin with a conspicuous percurrent midrib and more or less conspicuous veins extending from the midrib to the margins of the thallus. The colour is a deep red to reddish purple. Https://oregonflora.org/collections/individual/index.php?occid=4678325.

Robert F. Scagel 46, 1955-7-18
OSC, Catalog: OSC-A-007532, Accession Number: 10322