What is another word for Class Rhodophyceae?
Pronunciation: [klˈas ɹˈə͡ʊdəfˌa͡ɪsiː] (IPA) 
The Class Rhodophyceae, also known as red algae, is a diverse group of seaweed found in marine and freshwater habitats that contain a pigment called phycoerythrin. Phycoerythrin gives the red algae its characteristic red color. Some synonyms for the Class Rhodophyceae include red seaweed, Rhodophyta, Erythrophyta, and Florideophyceae. Red seaweed is a common name for this class, as it accurately describes the red coloration they produce. Rhodophyta and Erythrophyta are both scientific names for red algae, and Florideophyceae refers to the specific order that contains red algae. These synonyms are often used interchangeably in literature and research relating to marine biology and algae.
