[1] It is identified by its hemispherical perithecia (fruiting bodies) adorned with a white tomentum, and its 3-septate, spindle-shaped ascospores.

This species was first discovered on living leaves within a Cerrado forest remnant in Mato Grosso do Sul, Brazil.

The specific epithet albotomentosa refers to the distinctive white tomentum (short fungal hyphae with a texture similar to velvet) covering its ascomata, an unusual feature that sets it apart from other species within the genus Porina.

[2] The thallus of Porina albotomentosa appears somewhat polished (nitidous) and ochraceous grey, forming patches up to 1 cm in diameter.

[2] This lichen is solely known to occur in its type locality in Campo Grande, Mato Grosso do Sul, Brazil.