Phaeosaccion

Phaeosaccion
Scientific classification
Domain: Eukaryota
Clade: Sar
Clade: Stramenopiles
Division: Ochrophyta
Class: Phaeosacciophyceae
Order: Phaeosacciales
Family: Phaeosacciaceae
Genus: Phaeosaccion
Farlow, 1882
Type species
Phaeosaccion collinsii
Farlow, 1882
Other species
  • Phaeosaccion multiseriatum Andersen et al., 2020
  • Phaeosaccion okellyi Andersen et al., 2020
  • Phaeosaccion westermeieri Peters et al., 2024

Phaeosaccion is a genus of algae with monostromatic tubular to saccate thalli, up to 20 centimetres (7.9 in) long and to 2 centimetres (0.79 in) wide. It is classified in the family Phaeosacciaceae. It is olive brown and resembles young plants of Scytosiphon. The type species in the genus is Phaeosaccion collinsii, a species of marine algae. It was first identified in a publication by W.G. Farlow in the article Notes on New England algae published in Bulletin of the Torrey Botanical Club in 1882. It was named in honor of Frank Shipley Collins. Phaeosacchion collinsii is red listed in Iceland as a vulnerable species (VU).