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Fucus cottoni

                 2 photos (see below for more photos)


Habit
Photo by: Kjersti Sj√łtun
Location: Eggholmane, Raunefjorden, Hordaland
Verified by Kjersti Sj√łtun
Sampling date: 2011-07-05
Published: 2014-03-21

Typical habitat in high intertidal turf

Small and narrow form of Fucus which grows in turf high in the intertidal in sheltered places, and reproduce through adventitious branch formation. Individuals have cryptostomata and may have an inconspicuous mid-rib. Through analyses of microsatellites (e.g. Coyer et al. 2006) the form has been shown to be either a hybrid dwarf form of F. versiculosus and F. spiralis or dwarf-forms of F. vesiculosus or F. spiralis. In Norway the small Fucus-form is relatively rare, and it is not known what its origin is. Also other members of Fucales can form dwarf-thalli in the high intertidal salt marsh, for example Pelvetia canaliculata.




Thallus
Photo by: Kjersti Sj√łtun
Location: Eggholmane, Raunefjorden, Hordaland
Photo is showing (categorized): Thallus, Branching pattern
Verified by Kjersti Sj√łtun
Sampling date: 2011-07-05
Published: 2014-03-21

Individuals around 3.5 cm long, with adventitious branches



 

     

     

     

     

     

     

     

     

     

     

     

     

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