Giffordia mitchellae [Status Unaccepted]   (Harv.) Hamel  (Algae)
Organism information awaits expert curation
Class: Phaeophyceae

Color: Brown

Plants in dense tufts as soft, bushy growth, attaining a height of 5-11 cm; fastened to the substratum by means of long branched rhizoids arising from any cell up to the mid-portion of the main filaments. Occasionally a number of rhizoids originating from the lower portion of a few individuals intertwining with each other from an axis as thick as 0.5 mm. Cells of the rhizoids poor in contents, 18-80 µ long and 18-22 µ broad. Erect system profusely branched. Branches at first monopodially arranged, but becoming irregular later; either scattered or more or less close to each other; towards the apices gradually tapering into hair-like form. Growth of the main filament and laterals is intercalary trichothallic. Cells rectangular to slightly barrel-shaped, 20-180 µ long and 6-28 µ broad. Chromatophores several in number, irregularly band-shaped with slight spiral arrangement.

Unilocular and plurilocular sporangia occurring on the same plant; the latter more abundant than the former. Plurilocular gametangia occurring on separate plant. Unilocular sporangia always sessile, cylindrical, broadly rounded at the base and apex, 70-90 µ long and 20-25 µ broad. Plurilocular sporangia cylindrically elongated, obtuse at the apex, usually sessile, occasionally stalked, 125-135 µ long and 27-35 µ broad. Plurilocular gametangia identical to plurilocular sporangia in shape. The former sessile, more or less axillary large or small. The former 60-100 µ long and 14-20 µ broad with 8-10 µ broad loculi. Smaller gametangia 50-88 µ long and 10-15 µ broad, the loculi being 3-5 µ broad.

Synonym (s)
Ectocarpus virescens Thuret in Sauvageau, 1896

Common Name (s)
Economic Importance and Threats

Habitat:  Rocky, Coastal


• Gujarat, Gulf of Kachchh (Lat: 22.6) (Long: 69.5) INDIA
• Tamil Nadu, Mandapam (Lat: 9.28) (Long: 79.12) INDIA
• Gujarat, Okha Port INDIA
• Gujarat, Dwarka INDIA
• Gujarat, Porbandar INDIA
• Gujarat, Veraval INDIA
• Maharashtra, Mumbai INDIA
• Tamil Nadu, Pamban INDIA
• Tamil Nadu, Mahabalipuram INDIA
• Gujarat, Gulf of Kachchh INDIA
• Gujarat, Okha INDIA
• Karnataka, Karwar INDIA (Record: 01/1985-12/1985)
• Karnataka, Honavar INDIA (Record: 01/1985-12/1985)
• Karnataka, Bhatkal INDIA (Record: 01/1985-12/1985)
• Karnataka INDIA
• Andhra Pradesh, Visakhapatnam INDIA

Literature Source(s)
  • Subba Rao, NV and Sastry, DRK (2005) Fauna of Marine National Park, Gulf of Kuchchh (Gujarat) ZSI 79 pp Available at - NCL, Pune
  • Ganesam, M; Mairh, OP and Rao, PVS (2001) Effect of pre-incubation of nitrate and ammonium in cultures on nitrate reductase activity in marine red algae Gelidiella and Gracilaria from southeast coast of India Indian Journal of Marine Sciences 30 232-236 Available at - NIO, RC Kochi
  • Society for the Management of European Biodiversity Data (2009) World Register of Marine Species (WoRMS) Available at -
  • Mishra, JN (1966) Phaeophyceae in India ICAR 203 pp Available at - NIO, Goa
  • 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 -
  • Untawale, AG; Reddy, CRK and Deshmukhe, GV (1989) Ecology of intertidal benthic algae of northern Karnataka coast Indian Journal of Marine Sciences Scientific Publishers 18 73-81 Available at - NIO, Goa
  • Kaladharan, P; Zacharia, PU and Vijayakumaran, K (2011) Coastal and marine floral biodiversity along the Karnataka coast Journal of the Marine Biological Association of India Marine Biological Association of India, Cochin, India 53 (1) 121 - 129 Available at -
  • Kaladharan, P; Zacharia, PU and Vijayakumaran, K (2011) Coastal and Marine floral biodiversity along the Karnataka coast Journal of the Marine Biological Association of India The Marine Biological Association of India 53(1) 121-129 Available at - NIO,Goa

Page last updated on:2011-11-18

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