Brachytrichia quoyi   (C. Agardh) Bornet & Flahault,  1886 (Cyanobacteria formerly Blue Green Algae)
Organism information awaits expert curation
Class: Cyanophyceae

Image copyrights: Encyclopedia of Taiwan

Size: 4-5 µm in diameter in the basal layer, 6-9 µm in diameter in the upper branches, some of which tapper to 1 µm in diameter at the tip; upper branches parallel or radially arranged in the gelatinous matrix. Heterocysts 8-12 µm in diameter or more, spherical, oval, or subglobose.

Plants forming a flattened crust or spherical to irregular, firm gelatinous masses a few millimeters to several centimeters in diameter, often folded and becoming hollow with age. Attached to rocks, wood, larger algae, or seagrass leaves in the intertidal zone along open-sea beaches where the salinity is consistently high and the water clear.

Synonym (s)
Nostoc quoyi C. Agardh, 1824
(Homotypic synonym)

Common Name (s)
Economic Importance and Threats

Habitat:  Open Sea, Rocky, Coastal


• Tamil Nadu, Mandapam INDIA

Literature Source(s)
  • 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
  • Phang, SM (2006) Seaweed resources in Malaysia: Current status and future prospects 9(2) 185-202 Available at - NCL, Pune
  • Society for the Management of European Biodiversity Data (2009) World Register of Marine Species (WoRMS) Available at -
  • (2006) Algaebase Available at -
  • Humm, HJ and Wicks, SR (1980) Introduction and guide to the Marine bluegreen algae A Wiley-Interscience Publication, John Wiley and Sons 194 pp Available at - NIO, Goa
  • Encyclopedia of Taiwan Available at -
  • 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 -

Page last updated on:2011-04-04

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