Spongomorpha coalita (Rupr.) F.S.Collins
Annotated by Robert F. Scagel. Sources: SYN.: Conferva scopaeformis Ruprecht, 1851, p. 404; Conferva coalita Ruprecht, 1851, p. 404; Cladophora scopaeformis (Ruprecht) Harvey, 1858, p. 75..

Washington: San Juan County: South of Deadman Bay, San Juan Island.
48° 37' N, 123° 9' W
Growing attached to rocks in the lower intertidal zone. Thallus a branched filament, up to 30 cm. high, grass green to dark green in colour; branching of thallus irregular, with distal portions of the filamentous system entangled into rope-like strands.

Robert F. Scagel 38, Jul 17, 1955
WTU, Accession: 244274, Barcode: WTU-A-016168, 40