Synura References Synura algae genus Ask Anything Homework Help Written by The Information Architects of Encyclopaedia Britannica The Information Architects maintain a master list of the topics included in the corpus of Encyclopædia Britannica, and create and manage the relationships between them. The Information Architects of Encyclopaedia Britannica Britannica AI Ask Anything Learn about this topic in these articles: algae/ Annotated classificationapproximately 250 species; Mallomonas and Synura. Class Xanthophyceae (yellow-green algae) Primarily coccoid, capsoid, or filamentous; mostly in freshwater environments; about 600 species; includes Botrydium, Bumilleriopsis, Tribonema, and Read Moreapproximately 250 species; Mallomonas and Synura. Class Xanthophyceae (yellow-green algae) Primarily coccoid, capsoid, or filamentous; mostly in freshwater environments; about 600 species; includes Botrydium, Bumilleriopsis, Tribonema, and Read More