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

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.

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.