Plocamium: The Delicate Beauty
- This research project provides much information on this genus of red algae of the temperate seas.
- http://www.mbari.org/staff/conn/botany/reds/eric/index.htm

Plocamium cartilagineum
- Photograph and basic information on this bright scarlet species.
- http://www.marlin.ac.uk/species/Plocamiumcartilagineum.htm