Class: Phaeophyceae

Order: Ectocarpales

Family: Chordariaceae

Genus: Soranthera

Species: ulvoidea

Linnaeus

Authority: Postels and Ruprecht, 1840

Type locality: Sitka, Alaska

Picture: photographed at Rueben Tarte Park, San Juan Island, Washington

Gabrielson, Paul W., Widdowson, Thomas B., Lindstrom, Sandra C.. Keys to the Seaweeds and Sea grasses of Southeast Alaska, British Columbia, Washington and Oregon.  July 2006.