[5] The type material was collected in South Korea, with an isotype housed at the Kyoto University herbarium (KYO).

The margins feature distinctive lobes that are either obscure or, more commonly, well-developed, measuring 0.5–2 mm wide and having raised rims.

The reproductive structures consist of fine to coarse powder-like granules (soredia) up to 300 μm in diameter, which usually lack projecting threads (hyphae).

[6] Lepraria coriensis grows on various substrates including rock (mostly siliceous), wood, bark, mosses and soil.

The species has been recorded from Asia (India, South Korea), and Australia, primarily in tropical to subtropical regions.