Bryopsidales, Bryopsidaceae
Bryopsis pennata var. secunda (Harvey) Collins & Hervey

In natural habitat.
Photo Data
- Place
- : Samui Island, Surat Thani.
- Depth
- : 3.0 m
This species has a feather-like appearance, composed of erect main axes that are hooked in one direction at the end with branchlets extending in the same direction. The plants grow on rocks and gravel in mid to lower intertidal zones along shorelines with moderate wave activity.

Fresh specimen.

Microscopic view of main axis hooked at the end and branchlets extending in the same direction.