General Description

Robust, compressed, erect fronds with multiple branches. Fronds have a central thickening, which becomes a midrib (costate) towards base. Branchlets (ramuli) occur in alternate pairs and curve strongly inwards. Outer edge (margin) of branchlet is serrated. Base lies flat on surface (prostrate). Reproductive stichidia clustered. Pink to medium-red. Up to 25 cm long (thallus).

Biology

When reproductive, a distinctive feature of this alga is a specialised branch (stichidia), which bears clusters of reproductive structures on short stems.

Habitat

Subtidal reef in moderate to rough waters, to depth of 22 m.

Reefs

Distribution guide

Australia.

Species Group

Seaweeds and seagrasses › Red algae

Depth

Shallow (1-30 m)

Water Column

On or near sea floor

Max Size

25 cm

Diet

Photosynthetic - sunlight

Commercial Species

No

Global Dispersal

Native to Australia

Identify

• Seaweeds and seagrasses

Conservation Status

• DSE Advisory List : Not listed
• EPBC Act 1999 : Not listed
• IUCN Red List : Not listed