Note:

E' una alga incrostante che infesta le foglie di Posidonia oceanica

Tassonomia:

Domain: Eukaryota - Whittaker & Margulis,1978 - eukaryotes
Kingdom: Plantae - Haeckel, 1866 - Plants
Subkingdom: Biliphyta - Cavalier-Smith, 1981
Phylum: Rhodophyta - Wettstein, 1922 - Red Algae
Subphylum: Macrorhodophytina - T. Cavalier-Smith, 1998
Class: Florideophyceae
Order: Corallinales
Family: Corallinaceae
Subfamily: Mastophoroideae
Genus: Hydrolithon - (Foslie) Foslie, 1909
Specific epithet: farinosum - (J.V. Lamouroux) D. Penrose & Y.M. Chamberlain
Botanical name: - Hydrolithon farinosum (J.V. Lamouroux) D. Penrose & Y.M. Chamberlain