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Seaweeds > Division Chlorophyta
Beaded cushion green seaweeds
Valonia
sp.*
Family Valoniaceae
updated Aug 10

Where seen? This cushion of little green beads is sometimes seen on our Southern shores growing on hard surfaces near reefs.

Features: The entire cushion about 2-5cm wide, each bead tiny. Each bead is a translucent sphere. The beads are tightly packed, close to one another and are actually interconnected. The entire cushion encrusts hard surfaces.

Sometimes mistaken for Bubble green seaweed (Boergesenia forbesii) which has much larger and more loosely arranged translucent bubble-like shapes. Here's more on how to tell apart some green seaweeds.

According to AlgaeBase, there are more than 10 current Valonia species.

Human uses: Some species are eaten by people.

Sentosa, Jun 07

Beaded cushion green seaweeds on Singapore shores

Kusu Island, Sep 10

St. John's Island, Jul 09

Labrador, Aug 04


Cyrene Reef, Aug 11

*Species are difficult to positively identify without close examination of internal parts.
On this website, they are grouped by external features for convenience of display.

Valonia 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.

  Valonia aegagropila
Valonia fastigiata
Valonia ventricosa

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