Anisomeridium globosum is a species of corticolous (bark-dwelling), crustose lichen in the family Monoblastiaceae.

[2] The type specimen of Anisomeridium globosum was collected from the Refúgio de Vida Silvestre Mata [pt] do Junco in Capela, Sergipe, Brazil, at an elevation of about 150 m (490 ft).

The ascomata are almost globose (more or less spherical), 0.3–0.45 mm in diameter, and superficial (situated on the surface) in the bark but completely covered by a thin layer of thallus.

Chemically, the thallus does not fluoresce under ultraviolet light, and no substances were detected using thin-layer chromatography.

[2] Anisomeridium globosum is found on smooth bark in undisturbed Atlantic rainforests and is only known to occur in Brazil.