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Porphyra umbilicalis

( NYN:Vanlig fjørehinne BOK:Vanlig fjærehinne ENG:Nori)                  4 photos (see below for more photos)


Habit
Photo by: Kjersti Sjøtun
Location: Golten, Sotra, Hordaland
Photo is showing (categorized): Thallus
Verified by Network members
Sampling date: 2009-03-15
Published: 2010-03-09

Overview of thallus

The species grows in the intertidal, and is most abundant at wave-exposed sites during winter and early spring. The attachment point is placed within the outline of the monostromatic blade, normally giving the thallus a distinct rosette form. The species is usually dioecious, but may occasionally be monoecious. Male gametangial and zygotosporangial sori can be seen as pale-yellow and red-coloured bands respectively, around the blade margin. Sori with neutral spores can be seen as brownish red bands around the margins of the thallus. Little is known about the natural occurrence of the diploid ‘Conchocelis’ phase of the species.




Surface view of cells
Photo by: Kjersti Sjøtun
Location: Flatevosen, Raunefjorden, Hordaland
Photo is showing (categorized): Cell structure, Surface view
Verified by Network members
Sampling date: 2010-02-11
Published: 2010-03-09

Surface view of vegetative cells




Surface view of male gametangia
Photo by: Kjersti Sjøtun
Location: Flatevosen, Raunefjorden, Hordaland
Photo is showing (categorized): Reproductive structure
Verified by Network members
Sampling date: 2010-02-11
Published: 2010-03-09

Male gametangial packets. Male gametangial sori can be seen as pale yellow bands around blade margins




Surface view of female gametangia
Photo by: Kjersti Sjøtun
Location: Flatevosen, Raunefjorden, Hordaland
Photo is showing (categorized): Reproductive structure
Verified by Network members
Sampling date: 2010-02-11
Published: 2010-03-09

Female gametangial packets. Zygotosporangial sori can be seen as red-coloured bands around blade margins



 

     

     

     

     

     

     

     

     

     

     

     

     

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