Characters: Colonies are encrusting and are devoid of any tendency to form branches. All corallites are rasp-like and are very small (averaging 1 mm diameter).
Colour: Bright green, sometimes brown.
Similar Species: Acropora palmerae, which has some tendency to form branches and has larger corallites. See also Isopora crateriformis. This species looks like an encrusting Montipora underwater.
Habitat: Reef flats exposed to strong wave action or currents.
Abundance: Common but inconspicuous.
Taxonomic Note: The only species of Acropora that never forms branches. Placed in synonymy with Acropora palmerae by Wallace, Done and Muir (2012). However, there are many species that have encrusting bases but none with no upgrowths nor corallites as small. Requires further study.
Taxonomic References: Veron (2000a); Veron (2002a);
