Padina commersonii [Status Unaccepted]   Bory de Saint-Vincent,  1828 (Algae)
Organism information awaits expert curation
Class: Phaeophyceae

Size: 8-10 cm height and 2-4 cm in breadth.

Color: Dark brown

Basal portion forming a rhizomatous disc, continuing into a narrow stipe, which expands upwards becoming a fan-shaped and dichotomously divided. Lateral margins of the fronds entire, apical margins involute. Thallus in the younger parts composed of an upper and a lower layer; upper composed of small rectangular, thin-walled cells, richly provided with chromatophores. Lower layer consisting of large rectangular, thick-walled cells, poor in contents. Thallus in the older regions three layered. Hairs richly present forming rows of the surface of the thallus, with every other row of hairs more developed than the rest of the rows.

Reproductive bodies forming alternating rows with the rows of hairs. Rows of tetrasporangia occurring just above each row of hairs. Tetrasporangia globular.

Synonym (s)
Zonaria pavonia var. tenuis C. Agardh, 1824
Zonaria tenuis var. commersonii Kutzing, 1849
Padina tenuis Mont. (cf. De Toni), 1895

Common Name (s)
Economic Importance and Threats

Habitat:  Rocky, Coastal


• Gujarat, Dwarka INDIA
• Tamil Nadu, Krusadai Island INDIA
• Red Sea

Literature Source(s)
  • Mishra, JN (1966) Phaeophyceae in India ICAR 203 pp Available at - NIO, Goa
  • Society for the Management of European Biodiversity Data (2009) World Register of Marine Species (WoRMS) Available at -
  • (2006) Algaebase Available at -

Page last updated on:2011-06-20

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