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Rhodophyceae
   
Ahnfeltiales
  
  Bangiales
    Bonnemaisoniales
    Ceramiales
    Corallinales
    Cryptonemiales
   
Erythropeltidales
    Gelidiales
    Gigartinales
    Gracilariales
    Hildenbrandiales
    Nemaliales
    Palmariales
    Plocamiales
    Rhodymeniales

    Atlantic checklist
    Mediterranean
                 checklist

Phaeophyceae

Chlorophyceae

Ecology

Bibliography

Glossary

Rhodophyceae

.
Ahnfeltiales

        Ahnfeltia

.   

Gigartinales
        Acrosymphitum
        Catenella
        Calliblepharis
        Callophyllis
        Chondracanthus
        Chondrus
        Cystoclonium
        Dilsea
        Dudresnaya
        Dumontia
        Furcellaria
        Gigartina
        Gymnogongrus
        Hypnea
        Kallymenia
        Mastocarpus
        Peyssonnelia
        Phyllophora
        Polyides
        Rhodophyllis
        Rissoella

        Schottera
        Sebdenia
        Sphaerococcus

.
Bangiales

         Bangia
         Porphyra

 

..
Bonnemaisoniales
 
          Asparagopsis
          Bonnemaisonia
.
Ceramiales
          Antithamnion
          Boergeseniella
          Bostrychia
          Callithamnion
          Ceramium
          Chondria
          Cryptopleura
          Delesseria
          Digenea
          Halurus
          Haraldiophyllum
          Heterosiphonia
          Hypoglossum
          Laurencia
          Membranoptera
          Nitophyllum
          Osmndea
          Phycodris
          Plumaria
          Polyneura
          Polysiphonia
          Ptilota
          Rhodomela
          Vidalia
          Wrangelia
.
Gracilariales

        Gracilaria
        Gracilariopsis
.
Hildenbrandiales
        Hildenbrandia
.
Nemaliales
        Liagora
        Naccaria
        Nemalion
.
Corallinales
          Amphiroa
          Corallina
          Jania
          Lithophyllum
          Lithothamnion
          Melobesia
          Mesophyllum
          Phymatolithon
          Pseudolithophyllum
          Titanoderma
.
Palmariales
        Palmaria
        Rhodothamniella
.
Cryptonemiales
          Grateulopia
          Halymenia
.
Plocamiales
        Plocamium
.
Erythropeltidales
          Porphyropsis
.
Rhodymeniales
        Botryocladia
        Chrysimenia
        Chylocladia
        Gastroclonium
        Lomentaria
        Rhodimenia
.
Gelidiales
         Gelidiella
         Gelidium
         Pterocladia
                           Atlantic checklist
                           
Mediterranean checklist
.

Key to the most common Genera    Chiave per i Generi pił comuni

Thread-like thallus    
Tallo filamentoso

   
Bangia, Bostrychia, Bornetia, Callithamnion, Ceramium, Dasya, "Falkenbergia" (=Asparagopsis),
    Griffithsia, Halurus, Heterosyphonia, Plumaria, Polysiphonia, Ptilota, Rhodothamniella, Wrangelia.

Thallus showing narrowings    
Tallo con restringimenti

    Acrosymphyton, Catenella, Champia, Chrysymenia, Chylocladia, Dudresnaya, Dumontia,
    Gastroclonium, Halimenia, Lomentaria, Predaea, Sebdenia.

Cylindrical thallus    
Tallo cilindrico

    Alsidium, Anfeltia, Asparagopsis, Bonnemaisonia, Chondria, Cystoclonium, Digenea, 
    Furcellaria, Gracilaria, Gymnogongrus, Halopitys, Halurus, Hypnea, Laurencia, Nemalion, 
    Rhodomela, Polyides, Polysiphonia, Solieria.

Flattened, thick thallus    
Tallo appiattito e spesso

   
Calliblepharis, Chondrus, Contarinia, Fauchea, Gelidium, Gigartina, Gracilaria, Grateulopia,
    Gymnogongrus, Laurencia, Mastocarpus, Phyllophora, Plocamium, Pterocladia, Ptilophora,
    Rhodimenia, Rytiphlaea, Schottera, Sphaerococchus.

Leaf or ribbon-like, thick thallus    
Tallo foliaceo o nastriforme spesso

   
Calliblepharis, Callophyllis, Chondrymenia, Dilsea, Grateulopia, Halimenia, Kallimenia, Palmaria,
    Platoma, Rissoella, Schizymenia, Sebdenia Vidalia.

Thin, membranous thallus    
Tallo membranoso sottile

    Acrosorium, Apoglossum, Cryptopleura, Hypoglossum, Nitophyllum, Odonthalia, Polyneura, 
    Porphyra, Rhodophyllis.

Encrusting, soft thallus    
Tallo incrostante soffice

    Hildenbrandia, "Petrocelis" (=Mastocarpus), Peyssonnelia.

Encrusting, epiphyte thallus
Tallo incrostante epifita

    Melobesia, Titanoderma.

Calcified, stone-like thallus     
Tallo calcificato di aspetto pietroso

    Lithophyllum, Lithothamnion, Mesophyllum, Pseudolithophyllum, Tenarea.

Articulated, calcified thallus    
Tallo calcificato con articolazioni

    Amphyroa, Corallina, Haliptilon, Jania, Liagora, Titanoderma.

Special bibliography
Athanasiadis, A. 1987 - A Survey of the Seaweeds of the Aegean Sea with Taxonomic Studies on Species of the Tribe Antithamnieae (Rodophyta). University of Gothenburg, Department of Marine Botany, Goteborg.

Boudouresque C.F., Perret-Boudouresque M.M. 1987 - A Checklist of the Benthic Marine Algae of Corsica. GIS Posidonie Publishers, Marseille.

Guiry M. D. 1997 - Benthic red, brown and green algae. In: The Species Directory of the Marine Fauna and Flora of the British Isles and Surrounding Seas. Ulster Museum & Marine Conservation Society, Belfast & Ross-on-Wye

Hardy G., Guiry M.D., Arnold H. 2006 - A Check-list and Atlas of the Seaweeds of Britain and Ireland. British Phycological Society, London