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Seaweeds > Division Rhodophyta
Curled-tip red seaweed
Portieria hornemannii*
Family Rhizophyllidaceae
updated Jan 13

Where seen? This seaweed with fans of fine branches with curled tips is sometimes seen on our southern shores on coral rubble. Elsewhere, it is said to prefer clear water, where it is common and a conspicuous element of tropical reef flats.

Features: Small (about 5cm in height) made up of flat fans of fine branches that form a net-like pattern. The tips are curled. Dark red to bright red, elsewhere also said to be bright orange.

According to AlgaeBase: there are 8 species of Portieria.

Features: This seaweed is much studied because it contains a substance that may supress human tumors.

Cyrene, Aug 10

Pulau Senang, Aug 10

Pulau Senang, Aug 10

Sisters Island, May 12

Tips are curled.

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

Curled-tip red seaweeds on Singapore shores

Photos Curled-tip red seaweeds for free download from wildsingapore flickr

Distribution in Singapore on this wildsingapore flickr map

Portieria 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.

  Portieria hornemannii

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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