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Polysiphonia fucoides

( NO:Svartdokke)                  5 photos (see below for more photos)


Habit
Photo by: Kjersti Sj√łtun
Location: Bukken, Raunefjorden, Hordaland
Verified by Kjersti Sj√łtun
Sampling date: 2014-03-03
Published: 2014-03-17

A 13 cm long main axis

The species is found along the Norwegian coast in sheltered areas. It forms dark red bushes, normally with more than one main axis from an attachment disc, and the axes are often relatively sparsely branched in the lower part. It has segments with 12-16 periaxial cells and no cortex cells in the upper parts, while the main axes form some cortex in the lower parts. The attachment rhizoids are cut off from the periaxial cells.




Branch tips
Photo by: Kjersti Sj√łtun
Location: Bukken, Raunefjorden, Hordaland
Photo is showing (categorized): Branching pattern
Verified by Kjersti Sj√łtun
Sampling date: 2014-03-03
Published: 2014-03-17

Branching pattern




Segments with periaxial cells
Photo by: Kjersti Sj√łtun
Location: Bukken, Raunefjorden, Hordaland
Photo is showing (categorized): Periaxial cells
Verified by Kjersti Sj√łtun
Sampling date: 2014-03-03
Published: 2014-03-17

Detail of segments with uncorticated periaxial cells in upper part of an axis




Lower part of a main axis with cortex cells
Photo by: Kjersti Sj√łtun
Location: Bukken, Raunefjorden, Hordaland
Photo is showing (categorized): Cortical cells
Verified by Kjersti Sj√łtun
Sampling date: 2014-03-03
Published: 2014-03-17

Detail showing cortex cells in the grooves between periaxial cells




Cross section
Photo by: Kjersti Sj√łtun
Location: Bukken, Raunefjorden, Hordaland
Photo is showing (categorized): Cross section
Verified by Kjersti Sj√łtun
Sampling date: 2014-03-03
Published: 2014-03-17

Cross section showing the central cell and 16 periaxial cells



 

     

     

     

     

     

     

     

     

     

     

     

     

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