Species:
Sphacelaria plumula Zanardini
Classification
The species Sphacelaria plumula belongs to:
Photos
Photos of Sphacelaria plumula (5):
1 of 5: Specimens (up to 1 cm long) found on lamina of kelp in the subtidal zone

Note: The species is rather rare at the Norwegian coast, but has a wide distribution in Europe. The thallus, which is 0.5-1 cm tall, is built up with a distinct un-corticated main axes and small branches which are mainly organized opposite to each other.
2 of 5: Branches with propagules in different development stages.

3 of 5: Immature propagule

4 of 5: Characteristic propagule with three short horns.

5 of 5: Segments with no cortication

Closest relatives
Other species in the same genus (Sphacelaria):
- Sphacelaria cirrosa (Roth) C. Agardh
- Bruntufs in Norwegian Bokmål
- Sphacelaria rigidula Kützing
- Gaffeltufs in Norwegian Bokmål
- Sphacelaria tribuloides Meneghini (2)