brown seaweeds text index | photo index
Seaweeds > Division Phaeophyta
Bracket brown seaweed
Lobophora variegata*
Family Dictyotaceae
updated Oct 2016

Where seen? Forming flat, fan-shaped clusters encrusting hard surfaces. Some resemble terrestrial bracket fungi or fish scales. They are sometimes seen on our Southern shores, growing on coral rubble near reefs.

Features: Thin, flat stiff leathery disks about 2-4cm in diameter, growing in clusters. Only the central portion is attached to the hard surface, the edges are free. Forming disks sometimes with a cleft or notch becoming fan-shaped to kidney-shaped. The edges are paler and may be slightly ruffled. Colours brown or yellowish-brown often with fine yellow lines radiating from the centre to the edges. According to Huisman, those growing in deeper may be entirely upright.

Sometimes confused with Scaly red seaweed (Peyssonnelia sp.) which are more encrusting and stiff with a slimy surface.

According to AlgaeBase: there are 10 species of Lobophora.

Labrador, May 06

Labrador, May 06

Sentosa, Nov 08

Terumbu Selegie, Jun 11

*Seaweed species are difficult to positively identify without microscopic examination.
On this website, they are grouped by external features for convenience of display
Bracket brown seaweeds on Singapore shores

Photos of Bracket brown seaweeds for free download from wildsingapore flickr

Distribution in Singapore on this wildsingapore flickr map

Lobophora species recorded for Singapore
Pham, M. N., H. T. W. Tan, S. Mitrovic & H. H. T. Yeo, 2011. A Checklist of the Algae of Singapore.

  Lobophora variegata

Links References
  • Lee Ai Chin, Iris U. Baula, Lilibeth N. Miranda and Sin Tsai Min ; editors: Sin Tsai Min and Wang Luan Keng, A photographic guide to the marine algae of Singapore, 2015. Tropical Marine Science Institute, 201 pp.
  • Pham, M. N., H. T. W. Tan, S. Mitrovic & H. H. T. Yeo, 2011. A Checklist of the Algae of Singapore, 2nd Edition. Lee Kong Chian Natural History Museum, National University of Singapore, Singapore. 99 pp. Uploaded 1 October 2011. [PDF, 1.58 MB].
  • A. C. Lee, Lawrence M. Liao and K. S. Tan. New records of marine algae on artificial structures and intertidal flats in coastal waters of Singapore. Pp. 5-40. in the Raffles Bulletin of Zoology.
  • Huisman, John M. 2000. Marine Plants of Australia University of Western Australia Press. 300pp.
  • Calumpong, H. P. & Menez, E. G., 1997.Field Guide to the Common Mangroves, Seagrasses and Algae of the Philippines. Bookmark, Inc., the Philippines. 197 pp.
  • Trono, Gavino. C. Jr., 1997. Field Guide and Atlas of the Seaweed Resources of the Philippines.. Bookmark, Inc., the Philippines. 306 pp.
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