Ralfsia verrucosa   (J. E. Areschoug) J. E. Areschoug,  1845 (Algae)
Organism information awaits expert curation
Class: Phaeophyceae

Image copyrights: M.D. Guiry

Color: Thalli dark brown

Plants forming crust of several yards in diameter. Margins smooth; thallus surface showing concentric zones; internally built up of several layers. Unilocular sporangia aggregated, cylindrical, without paraphyses.

Synonym (s)
Zonaria deusta Lyngbye, 1819
Cruoria verrucosa J. E. Areschoug, 1843
(Homotypic synonym)
Ralfsia verrucosa var. lignicola J. E. Areschoug, 1847
(Heterotypic synonym)
Ralfsia verrucosa var. cochlearum J. E. Areschoug, 1876
(Heterotypic synonym)
Hildenbrandtia deusta Kutzing, 1845
Padina deusta Hooker, 1833
Ralfsia verrucosa (Areschoug) Areschoug in Fries, 1845

Common Name (s)
Economic Importance and Threats

Habitat:  Rocky, Coastal


• Lakshadweep (Lat: 10.5) (Long: 73) INDIA
• Lakshadweep (Lat: 11) (Long: 72.5) INDIA
• Andhra Pradesh, Vishakhapatnam (Lat: 17.7) (Long: 83.3) INDIA
• Lakshadweep INDIA

Literature Source(s)
  • Balakrishnan, MS and Kinkar, VN A taxonomic account of Indian Ectocarpales and Ralfsiales 22341 Available at - NIO, Goa
  • Sahoo, D; Nivedita and Debasish (2001) Seaweeds of Indian coast S. B. Nangia, A. P. H. Publishing Corporation, New Delhi 283 pp Available at - NIO, Goa
  • Schilsa, T; Clerck, OD; Leliaerta, F; Bolton, JJ and Coppejans, E (2001) The change in macroalgal assemblages through the Saldanha Bay/ Langebaan lagoon ecosystem (South Africa) Botanica Marina Walter de Gruyter, Berlin, Germany 44 295-305 Available at - NIO, Goa
  • Oza, RM and Zaidi, SH (2001) A revised checklist of Indian marine algae Available at - NIO, Goa
  • Society for the Management of European Biodiversity Data (2009) World Register of Marine Species (WoRMS) Available at - http://www.marinespecies.org
  • Mishra, JN (1966) Phaeophyceae in India ICAR 203 pp Available at - NIO, Goa
  • (2006) Algaebase Available at - http://www.algaebase.org/
  • Silva, PC; Basson, PW and Moe, RL (1996) Catalogue of the benthic marine algae of the Indian Ocean University of California Press 79 1259 pp Available at - NIO, Goa
  • Krishnamurthy, V (2006) Key to the taxonomic identification of green and brown marine algae of India Recent advances on applied aspects of Indian marine algae with reference to global scenario. Seaweed taxonomic identification, aquaculture, resource, environment, fouling and disease Central Salt and Marine Chemicals Research Institute, Bhavnagar 1 1-146 Available at - NIO, Goa
  • Tseng, CK (Ed.) (1983) Common seaweeds of China Science Press 316 pp Available at - NIO, Goa

Page last updated on:2011-04-05

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