Species:
Pterothamnion plumula (Ellis) Nägeli
Vanlig havdun in Norwegian
Classification
The species Pterothamnion plumula belongs to:
Photos
Photos of Pterothamnion plumula (5):
1 of 5: Specimen from Svartholmen, Hordaland, Nov. 2005

2 of 5: Pedicellate tetrasporangia

3 of 5: Specimen

4 of 5: Apices with abundant adaxial glandcells

5 of 5: Tetrasporangia born on first or second order branches

Closest relatives
Other species in the same genus (Pterothamnion):
- Pterothamnion spinescens (Strömfelt) Athanasiadis