Various lichen products have been reported in the family, including depsides, depsidones, and derivatives of pulvinic acid.

[7] Acarosporaceae species are found in a broad range of environments, from coastal areas to high mountain regions, although they are particularly abundant in arid and semi-arid habitats.

They do not occur in tidal zones where lichens are periodically submerged, nor are they present in the deep shade of dense forests.

One example is A. interjecta, which starts as a parasite on the yellow A. novomexicana before transitioning into a distinctive brown, fully lichenized thallus.

Within the family, no sterile leprose taxa have been described, and only one sorediate species, A. moenium, is recognized; it produces a white thallus with black soralia.

Species such as A. applanata (from southwestern North America) and A. fissa (from the Czech Republic) are known for extensive crosshatching by abscission fissures; they seldom produce apothecia and primarily propagate through division.