Coralline red alga
- kingdom: Plantae
- phylum: Rhodophyta
- class: Florideophyceae
- order: Corallinales
- family: Corallinaceae
- genus: Calliarthron
- species: Calliarthron tuberculosum
Craig
AlaskaCarmel-by-the-Sea
Del Monte Forest
Pacific Grove
California
United States