Bangiophyceae is a class of red algae. In some classifications it is merged with the Florideophyceae to form the Rhodophyceae. The Bangiophyceae, as defined traditionally, are paraphyletic.[1] Their taxonomic identification has been difficult because of a lack of distinct morphological features, and the presumed morphological plasticity of the species. Molecular tools are required to elucidate the relationships within this assemblage.

Porphyra umbilicalis.jpg
Porphyra umbilicalis
Scientific classification e
(unranked): Archaeplastida
Division: Rhodophyta
Subdivision: Eurhodophytina
Class: Bangiophyceae
Wettstein, 1901

It is still used by some sources, and defined sensu stricto (including Bangia and Porphyra but not the species included in Florideophyceae) is considered a valid clade.[2]


  1. ^ G. W. Saunders & M. H. Hommersand (2004). "Assessing red algal supraordinal diversity and taxonomy in the context of contemporary systematic data" (abstract). American Journal of Botany. 91 (10): 1494–1507. doi:10.3732/ajb.91.10.1494. PMID 21652305.
  2. ^ Joseph Seckbach; David J. Chapman (2010). Red Algae in the Genomic Age. Springer. p. 34. ISBN 978-90-481-3794-7.