(Griffitsia) (Griffitsia) is a biological genus in the family Ceramiaceae and order Ceramiales.
Griffitsia anthericephala
Griffitsia corallinoides
Griffitsia flosculosa
Griffitsia furcellata
Griffitsia globulifera
Griffitsia metcalfi
Griffitsia ovalis
Griffitsia pacifica
Griffitsia rhizophora
Griffitsia tenuis
Aglaothamnion
Anotrichium
Antithamnion
Antithamnionella
Bornetia
Callithamnion
Centroceras
Ceramium
Compsothamnion
Corynospora
Crouania
Griffitsia
Gymnothamnion
Haloplegma
Halurus
Hollenbergia
Lejolisia
Mesothamnion
Microcladia
Neoptilota
Platythamnion
Pleonosporium
Plumaria
Ptilota
Ptilothamnion
Ptilothamniopsis
Rhododictyon
Scagelia
Scagelonema
Seirospora
Spermothamnion
Sphondylothamnion
Spyridia
Tiffaniella
Trailliella
Wrangelia