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

Washington: Clallam County: Hein Bank, in Juan de Fuca Strait, near the entrance to Haro Strait.
48° 21' N, 123° 2' W
Datum: WGS 84. Uncertainty: 2000 meters. Coordinate Source: Specimen Label. Invalid coordinates (located outside county bounds).
On rocks and worm tubes subtidally to a depth of 5 fathoms. 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. Substrate: rock, worm tubes.

Robert F. Scagel 31, Jul 5, 1955
OSC, Accession: 1000, Barcode: OSC-A-009404, 20