- Reference
- Liste Alg.Siboga 3:333-334, Fig. 125 (1923)
- Conservation Code
- Not threatened
- Naturalised Status
- Native to Western Australia
- Name Status
- Current
Scientific Description
Habit and structure. Thallus erect, to 9 mm tall, with a limited prostrate axis, attached by rhizoids. Branching pseudosympodial or subdichotomous, distichous. Apices straight or slightly forcipate. Structure with 12–16 periaxial and pseudoperiaxial cells, these angular and cutting off 2 acropetal and 2 basipetal cell layers. Nodal cortication 200–250 diam., 90–100 μm long when mature. Vesicular cells often present in nodes, dome-shaped, spherical in surface view, 10–20 μm diam.
Reproduction. Tetrasporangia mostly naked, their base partly immersed in nodal cells, without an involucre, clustered unilaterally on surface of node, spherical to pyriform, 30–60 μm diam., often with a thick sporangial wall, tetrahedrally divided. Other reproductive structures not observed.
Distribution. Known from Indonesia, India, the Seychelles, Oman, the South Pacific Ocean and northern Australia.
Habitat. Usually epiphytic.
[After J.M. Huisman in Algae of Australia: Marine Benthic Algae of North-western Australia, 2. Red Algae: 404–406 (2018)]