Pterosiphonia dendroidea (Mont.) Falkenberg
Annotated by Robert F. Scagel.

Washington: Clallam: Hein Bank, in Juan de Fuca Strait, near the entrance to Haro Strait.
48.35° N, 123.033333° W,
Datum: WGS 84. Coordinate Source: Specimen Label. Invalid coordinates (located outside county bounds).
On rocks and worm tubes subtidally to a depth of 5 fathoms.; rock, worm tubes. HerbariumSpecimenDuplicate: Pterosiphonia dendroidea Other Number: 20; Thallus up to 10 cm. high, brownish red to rose red in colour. The erect branches have a percurrent axis distichously and pinnately branched from base to apex with all laterals about the same length. Https://oregonflora.org/collections/individual/index.php?occid=4680222.

Robert F. Scagel 31, 1955-7-5
OSC, Catalog: OSC-A-009404, Accession Number: 1000