1. Betts M (1991) Seven criteria worksheet for findings on: Customary and traditional uses of seaweed and kelp in southeast Alaska. Report to the Alaska Board of Fisheries. Division of Subsistence, Region I, Alaska Department of Fish & Game, Juneau, Alaska
2. Cannon MI (1989) Cell division patterns and diurnal cycle of Porphyra abbottae (Rhodophyta, Bangiales) carpogonial and carpospore development. J Phycol 25:612–615
3. Conway E, Mumford TF Jr, Scagel RF (1975) The genus Porphyra in British Columbia and Washington. Syesis 8:185–244
4. Gabrielson PW, Widdowson TW, Lindstrom SC (2004) Keys to the Seaweeds and Seagrasses of Oregon and California North of Point Conception. Phycological Contribution No. 6, PhycoID, Hillsborough, North Carolina, USA
5. Garbary DJ, Hansen GI, Scagel RF (1980) The marine algae of British Columbia and northern Washington: Division Rhodophyta (red algae), Class Bangiophyceae. Syesis 13:137–195