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Title: Florideophyceae  
Author: World Heritage Encyclopedia
Language: English
Subject: Algae, Kingdom (biology), Palmaria palmata, Callophyllis variegata, Bangiophyceae, Gracilaria, Audouinella, Ceramium, Lemanea, Atractophora hypnoides
Publisher: World Heritage Encyclopedia


"Florideae" from Ernst Haeckel's Kunstformen der Natur, 1904

Florideophyceae, demoted to subclass Floridae in some classification systems, is a class of red algae.[1] It is sometimes merged with the Bangiaceae into the Rhodophyceae, leaving the subclass Florideae in use.[2] They were once thought to be the only algae to bear pit connections,[3] but these have since been found in the filamentous stage of the Bangiaceae.[4]

"Florideophyceae" is still used by some authorities.[5]

Once thought only to exhibit apical growth, some genera grow by intercalary growth.[4] Most, but not all, genera have three phases to the life cycle.[4]


There are various classification schemes; see Red algae. One option is to use the following:

Subclass Hildenbrandiophycidae

Subclass Nemaliophycidae

  • Batrachospermales
  • Balliales
  • Balbianiales
  • Nemaliales
  • Colaconematales
  • Acrochaetiales
  • Palmariales

Subclass Corallinophycidae

The subclass Corallinophycidae was introduced in 2007.[6]

Subclass Ahnfeltiophycidae

  • Ahnfeltiales
  • Pihiellales

Subclass Rhodymeniophycidae

  • Bonnemaisoniales
  • Gigartinales
  • Gelidiales
  • Gracilariales
  • Halymeniales
  • Rhodymeniales
  • Nemastomatales
  • Plocamiales
  • Ceramiales


External links

  • Tree of Life: Florideophyceae

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