Corallina

genus of red algae

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June 24, 2026

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Corallina is a genus of red algae, belonging to the family Corallinaceae. Red algae, in general, are a diverse group of marine algae, often characterized by their red or blue coloration due to pigments called phycobilins.12

The family Corallinaceae, which includes Corallina, features algae whose thalli (plant bodies) become hard and brittle due to the deposition of calcium carbonate. This characteristic can lead to the formation of coral-like deposits and contributes to the creation of coral reefs. Some species within the Corallina genus play a role in forming coral reefs and islands, alongside animal corals.32

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red algae
Some species of Corallina and its allies are important, along with animal corals, in forming coral reefs and islands. Agar, a gelatin-like substance prepared primarily from Gracilaria and Gelidium species, is important as a culture medium for bacteria and fungi.
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Some species of Corallina and its allies are important, along with animal corals, in forming coral reefs and islands. Agar, a gelatin-like substance prepared primarily from Gracilaria and Gelidium species, is important as a culture medium for bacteria and fungi.
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Great Barrier Reef
Geography
…formed in large part by coralline algae and bryozoans. The interstices of this framework have been filled in by vast quantities of skeletal waste produced by the pounding of the waves and the depredations of boring organisms.
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…formed in large part by coralline algae and bryozoans. The interstices of this framework have been filled in by vast quantities of skeletal waste produced by the pounding of the waves and the depredations of boring organisms.
Read More