Polyporolithon conchatum
[= Mesophyllum conchatum]
Annotated by R. E. Norris.

Washington: San Juan County: American Camp Beach, San Juan Island.
48.457541° N, 123.0077° W,
Datum: WGS 84. Uncertainty: 2998 meters. Coordinate Source: Digital Map.
On Polyporolithon parcum on Calliarthron. [Also on sheet: R. E. Norris 4855 Polyporolithon parcum; this specimen has a separate barcode.] Substrate: epiphytic.

R. E. Norris 4854, Jul 9, 1964
FHL, Accession: 2398, Barcode: FHL-A-02733