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Seaweeds > Division Rhodophyta > Crunchy pom-pom red seaweeds
Flat crunchy pom-pom red seaweed
Jania sp.*
Family Corallinaceae

updated Oct 15

Where seen? These pinkish crunchy flattened pom-poms are sometimes seen growing among living corals, or on rubble near living reefs, especially on our more remote Southern reefs.

Features: A usually rather flattened cluster (5-8cm) of many stiff, thick, cylindrical but flattened 'stems' that are branched along one plane forming Y-shapes. The tips with tiny white squarish 'caps'. The seaweed incorporates calcium carbonate making the 'stems' hard and brittle. It tends to grow flat against a hard surface, instead of forming a spherical bushy shape that sticks out. Colours pink or lilac.

May be confused with other pinkish seaweeds with a pom pom shape.

St. John's Island, Jun 07

Sentosa, Sep 11

Sisters Island, Jul 06

Sentosa, Nov 09

Terumbu Berkas, Jan 10

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

Flat crunchy pom-pom red seaweeds

Photos of Flat crunchy pom-pom red seaweeds for free download from wildsingapore flickr

Distribution in Singapore on this wildsingapore flickr map

Pulau Berkas, May 10

Pulau Senang, Aug 10

Pulau Biola, May 10

Terumbu Salu, Jan 10

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

  Amphiroa anceps
Amphiroa foliacea erecta
Amphiroa foliacea
Amphiroa fragilissima
Amphiroa rigida
Amphiroa tribulus

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].
  • 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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