Nemaliales, Galaxauraceae
Galaxaura divaricata (Linnaeus) Huisman & Townsend

In natural habitat.
Photo Data
- Place
- : Samui Island, Surat Thani.
- Depth
- : 2.5 m
The plants have slightly calcified branches that are cylindrical and irregularly dichotomous, and covered with short filaments along the entire length. The color of this species is dark red to a reddish brown. This seaweed grows on submerged rocks or dead coral in subtidal zones along shorelines with moderate wave activity.

Fresh specimen.

Close-up view of the branches with short filaments.