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Seaweeds > Division Rhodophyta
Pimply red seaweed
Acrocystis nana*
Family Rhodomelaceae
updated Aug 11

Where seen? This tiny seaweed that looks like tiny brown pimples are sometimes seen on moist areas in our natural rocky shores, often among other seaweeds. Elsewhere, they are generally found on limestone rocks and near caves and shady areas.

Features: Clusters of tiny spherical or teardrop-shaped bumps (0.5-1cm), tightly packed together. These emerge from creeping rhizomes that cling to the hard surface. Although it appears brown it is a red seaweed

According to AlgaeBase: there is only one species of Acrocystis.

Sentosa, Jul 11

Sentosa, Jul 11

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

Acrocystis 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.

  Acrocystis nana

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