Phaeista (Subphylum) > Limnista (Infraphylum) > Fucistia (Superclass) > Phaeophyceae (Class) > Ralfsiales (Order)
Phaeista (Subphylum) > Limnista (Infraphylum) > Fucistia (Superclass) > Phaeophyceae (Class) > Scytosiphonales (Order)
Some asexual phases of brown seaweed are also encrusting e.g. the Cutleria multifida (asexual Aglaozonia phase) of Cutler's Many Cleft Weed
Encrusting red algae (Rhodophyta)
Eurhodophytina (Subdivision) > Florideophyceae (Class) > Hildenbrandiophycidae (Subclass) > Hildenbrandiales (Order)
Eurhodophytina (Subdivision) > Florideophyceae (Class) > Corallinophycidae (Subclass) > Corallinales (Order)
Corallinaceae (Family) > Lithophylloideae (Subfamily)
Corallinaceae (Family) > Mastophoroideae (Subfamily)
Hapalidiaceae (Family) > Melobesioideae (Subfamily)
Phymatolithon calcareum (Pallas) W.H.Adey & D.L.McKibbin, 1970 and / or Lithothamnion corallioides P.L.Crouan & H.M.Crouan, 1867 - Maerl, a coralline algal gravel
Phymatolithon lenormandii (Areschoug) W.H.Adey, 1966 ?
- An Encrusting red algae
Eurhodophytina (Subdivision) > Florideophyceae (Class) > Rhodymeniophycidae (Subclass) > Peyssonneliales (Order)
Other images of encrusting algae
Bleaching of encrusting algae due to evaporation
of seawater in shallow pool during the summer
Many thanks to Professor Michael Guiry for his help in identifying some of the seaweeds featured on this page.
Michael Guiry's Seaweed Website
Other people have also provided advice about the algae on this page and numerous reference books have been used.
These include -
Seaweeds of Britain and Ireland (Seasearch) by Francis Bunker, Christine Maggs, Juliet Brodie and Anne Bunker. Published by Wild Nature Press
Volumes of Seaweeds of the British Isles by the Natural History Museum
Seaweeds by W. Braune and M. D. Guiry