[1] Described by André Aptroot in 2022, this saxicolous (rock-dwelling) lichen is notable for its microfoliose (small, leaf-like), densely branched thallus that is appressed to the substrate.

[2] The thallus of Tingiopsidium tropicum is dark grey, covers areas up to 5 cm in diameter, and features gnarled isidia concentrated in the central parts.

All chemical spot tests on the thallus were negative, indicating the absence of detectable secondary metabolites.

[2] This species is exclusively known from its type locality in Catas Altas (Minas Gerais, Brazil), where it occupies granite substrates in river beds that are periodically submerged.

It shares its habitat with Trapeliopsis studerae, another lichen species with a highly specific ecological niche.