Some 820 species of marine macrobenthic algae, including many species of Cyanophyta, are reported from the
Philippines. These consist of 472 species of Rhodophyta belonging to 37 families and 11 orders, 134 species
of Phaeophyta belonging to 10 families and 7 orders and 214 species of Chlorophyta belonging to 11 families
and 7 orders. The Rhodophyta comprise 57.6%, the Phaeophyta 16.3% and the Chlorophyta 26.1% of the flora.