Note: The species has round axes 1-2 mm wide and grows to around 15 cm tall. It has a repeated dichotomous branching, making it appear bushy. It has a small round attachment disc, from which additional axes may grow. Tetrasporangia are cruciate and can be found in the outer cortex layer.
2 of 3: Longitudinal cross section of axis
Species
Polyides rotunda
Sampling location
Espegrend, Raunefjorden, Hordaland
Sampling date
2018-02-08
Published
2024-10-18
Photo is showing (categorized)
Cell structure
Longitudinal section
3 of 3: Tetrasporangium
Species
Polyides rotunda
Sampling location
Tjongspollen, Bømlo, Hordaland
Sampling date
2013-11-11
Published
2022-07-06
Photo is showing (categorized)
Tetrasporangium
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This website contains an updated overview of seaweeds recorded in Norway.