Species:

Palmaria palmata(L.) F. Weber & D. Mohr

Søl in Norwegian
Dulse in English

Classification

The species Palmaria palmata belongs to:

Photos

Photos of Palmaria palmata (5):

  • Photo of Palmaria palmata
  • Photo of Palmaria palmata
  • Photo of Palmaria palmata
  • Photo of Palmaria palmata
  • Photo of Palmaria palmata

1 of 5: Habit

Photo of Palmaria palmata
Many individuals growing on Laminaria stipes  Photo: © Kjersti SjøtunTerms of use

Note: The species is common in the upper part of the subtidal zone at semi exposed sites along the coast of Norway. It often grows epiphytic on stipes of Laminaria or Fucus serratus. In North-Norway it is also common in the intertidal. The thallus is flat and may be up to 30 cm. It attached by a small disc, and often irregularly divided in a few sections. Large specimens often carry blades growing from the edge. Specimens are either tetrasporophytes or male gametophytes, since the female gametophyte is microscopic and crustforming. Small specimens can be mixed up with Dilsea carnosa, but can be separated from this by its rounded medullary cells. Dulse (søl in Norwegian and Icelandic) has traditionally been used as food in the North Atlantic.

2 of 5: Thallus

Photo of Palmaria palmata
Specimen with tetrasporangial sori Photo: © Kjersti SjøtunTerms of use

3 of 5: Tetrasporangial sorus

Photo of Palmaria palmata
Photo: © Vivian HusaTerms of use

4 of 5: Tetrasporangia

Photo of Palmaria palmata
Photo: © Vivian HusaTerms of use

5 of 5: Thallus

Photo of Palmaria palmata
Photo: © Kjersti SjøtunTerms of use