Porphyra thuretii Setchell & E.Y.Dawson
Annotated by J. Cruden.

Oregon: Tillamook: Tillamook Bay, east side, Hobsonville Point (Capt. Roft. Gray Memorial), southwest point.
45.547326° N, 123.905964° W,
Datum: WGS 84. Coordinate Source: GeoLocate.
Attached to rock, upper-intertidal, in full sun, exposed to waves.; rock. HerbariumSpecimenDuplicate: Enteromorpha linza | herbariumSpecimenDuplicate: Fucus distichus | herbariumSpecimenDuplicate: Bangia fuscopurpurea | herbariumSpecimenDuplicate: Porphyra perforata | herbariumSpecimenDuplicate: Pterosiphonia bipinnata Cells dark red, separated, oval in surface view. However some cells yellowish gray in light, packed groups. Thallus 50-60u in x sec. Https://oregonflora.org/collections/individual/index.php?occid=4682759.

J. Cruden 51-H, 1978-8-22
OSC, Catalog: OSC-A-011971