Halymenia porphyroides   Borgesen,  1932 (Algae)
Organism information awaits expert curation
Class: Florideophyceae

Image copyrights: D.S. Littler

Plants, leaf-like expansions, reaching large dimensions up to 48 cm long and 41 cm broad or even more, membranaceous, thin, lubricious, tough, somewhat elastic. Holdfast a very minute disc like structure in young plants. Basal stalk-like portion quite distinct in young plants forming the stipe. Stipe 0.5-1 cm long. Thallus in young plants more or less orbicular in outline with wavy undulating margin; older plants much folded and lobed, 230-300 µ thick.

In transverse section, thallus made up of short cell-rows on both sides at periphery; outer rows of cells smaller than the inner rows of cells; innermost medullary cells largest; 10-12 µ thick. Connecting filaments traverse the thallus in the cortical layer. Connecting filaments crossed by thinner filaments at various points, 3-5 µ in width. Thinner filaments arising from stellately divided cells occurring in large numbers below cortical layer. Cortex 3-5 layered, innermost cells being larger, irregular to sub-stellate, 15 µ in diameter. Stellate cells, 20-25 µ in diameter, arms of stellate cells, 150 µ long.

Tetrasporangia scattered in cortical layer appearing as deep red minute spots, oblong or ovoid, 12-15 µ long, 10-16 µ broad. Tetraspores cruciately divided, 16 µ X 24 µ, uni-nucleate, densely protoplasmic with several long ribbon shaped chromatophores. Cystocarps in individual clusters formed from an auxiliary cell, scattered, sub-spherical, 200 µ in width, ostiolate, totally immersed in the thallus. Carpospores irregularly rounded, 15 µ in diameter, uni-nucleate with few ribbon shaped chromatophores.

Synonym (s)

Common Name (s)
Economic Importance and Threats

Habitat:  Reef Associated, Rocky, Sandy, Coastal


• Gujarat, Okha (Lat: 22.47) (Long: 69.08) INDIA
• Tamil Nadu, Alantalai-Manapad INDIA (Record: 03/1988)
• Gujarat, Dwarka Coast (Lat: 18.17) (Long: 66.17) INDIA
• Gujarat, Okha Port (Lat: 22.47) (Long: 69.08) INDIA
• Gujarat, Dwarka Coast (Lat: 22.23) (Long: 68.97) INDIA
• Tamil Nadu, Arockiapuram Coast (Lat: 8.10) (Long: 77.57) INDIA (Record: 11/1995)
• Tamil Nadu, Vembar-Nallatanni Tivu INDIA (Record: 03/1988)
• Gujarat, Gulf of Kachchh INDIA
• Gujarat, Okha Reef INDIA
• Tamil Nadu, Pamban INDIA
• Tamil Nadu, Mandapam INDIA
• Tamil Nadu, Akkamadam INDIA
• Gujarat, Muldwarka INDIA
• Gujarat, Okha INDIA
• Gujarat, Dwarka INDIA
• Maharashtra, Mumbai INDIA

Literature Source(s)
  • Srinivasan, KS (1969) Phycologia Indica: Icones of Indian marine algae Botanical Survey of India, Calcutta 1 52 pp Available at - NIO, Goa
  • Dave, MJ; Parekh, RG; Ramavat, BK; Doshi, YA and Chauhan, VD (1987) Protein contents of red seaweeds from Gujarat coast Seaweed Research and Utilization Seaweed Research and Utilization Association, Marine Fisheries-623 520, Tamil Nadu, India 10(1) 17-20 Available at - NIO, Goa
  • Hussain, SM Brief report on biodiversity in the coastal areas of Pakistan p 113
  • (2006) Algaebase Available at - http://www.algaebase.org/
  • Shameel, M (1990) Phycochemical studies on fatty acids from certain seaweeds Botanica Marina Walter de gruyter, Berlin. New York 33 429-432 Available at - NIO, Goa
  • Salim, KM (1964) The distribution of marine algae along Karachi coast Botanica Marina Cram, De Gruyter and Co. Hamburg, Germany 7 183-197 Available at - NIO, Goa
  • Dhargalkar, VK and Deshmukhe, GV (1996) Subtidal marine algae of the Dwaraka coast (Gujarat) Indian Journal of Marine Sciences National Institute of Sciences Communication, CSIR, New Delhi 25(4) 297-301 Available at - NIO, RC, Kochi
  • (2003) Seaweeds of the Central West Coast of India Bioinformatics Centre, National Institute of Oceanography Available at - http://niobioinformatics.in/seaweeds/index.htm
  • Society for the Management of European Biodiversity Data (2009) World Register of Marine Species (WoRMS) Available at - http://www.marinespecies.org
  • Roslin, AS; Rosakutty, PJ and Lazarus, S (1997) A study on the flora and fauna of Arockiapuram Coast of Tamil Nadu Seaweed Research and Utilisation Seaweed Research and Utilisation Association 19(1-2) 55-61 Available at - NIO, Goa
  • Kaliaperumal, N; Chennubhotla, VSK; Kalimuthu, S; Ramalingam, JR; Pillai, SK; Muniyandi, K; Rao, KR; Rao, PVS; Thomas, PC; Zaidi, SH and Subbaramaiah, K (1998) Seaweed resources and distribution in deep waters from Dhanushkodi to Kanyakumari, Tamilnadu Seaweed Research and Utilisation Seaweed Research and Utilisation Association, Tamil Nadu, India 20(1&2) 141-151 Available at - NIO, Goa
  • (1997) Coastal marine environment of Gujarat 178pp Available at - NIO, Goa
  • Gopalakrishnan, P (1970) Some observations on the shore ecology of the Okha Coast Journal of the Marine Biological Association of India Cochin, India 120(1&2) 15-34 Available at - NIO, Goa
  • Sundaram, KS; Sarvesan, R; Mohamed, KH and Shanbhogue, SL (1969) Catalogue of molluscs, prawns, stomatopods and marine algae in the reference collections of the central marine fisheries research institute Bulletin Of Central Marine Fisheries Research Institute CMFRI, Cochin 9 1-52 Available at - http://eprints.cmfri.org.in/570/1/Bulletin_9.pdf
  • James, PSBR (1987) Distribution of the important Indian marine algae Seaweed research and utilization in India Bulletin Of Central Marine Fisheries Research Institute CMFRI, Cochin 41 100-111 Available at - http://eprints.cmfri.org.in/8209/1/Bulletin_No_41.pdf

Page last updated on:2011-06-22

Back to Search