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Seaweeds > Division Rhodophyta
Tiny ferny red seaweed
Bostrychia sp.*
Family Rhodomelaceae
updated Jan 12

Where seen? This tiny seaweed with tiny fern-like blades are sometimes seen on moist areas in our natural rocky shores, often among other tiny seaweeds. Elsewhere, it is commonly seen on the intertidal zone especially near mangroves and on mangrove roots, often forming thick bands in association with barnacles on the upper intertidal zone.

Features: Clusters of tiny feathery, fern-like blades (0.5-1cm), tightly packed together, forming a carpet on natural rocky shores at the high water mark. Colour brown, yellowish, reddish. Elsewhere may also be purplish. An astonishing variety of tiny creatures are often seen in thick carpets of this seaweed.

According to AlgaeBase: there are more than 150 species of Bostrychia.

Sentosa, Jul 11

Labrador, Dec 11

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

Bostrychia 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.

  Bostrychia calliptera
Bostrychia kelanensis
Bostrychia moritziana
Bostrychia radicans
Bostrychia simpliciuscula
Bostrychia tenella

Acknowledgments
With grateful thanks to Joseph Lai for identifying this seaweed.

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