[3] The species belongs to the genus Solorina, which is characterised by a foliose thallus with apothecia (fruit bodies) impressed in the upper surface.

A 1998 study by Martínez and Burgaz proposed recognising two subspecies based on statistical analyses of spore characteristics: S. bispora subsp.

The thallus (main body) consists of rounded or irregular small lobes surrounded by darker granular tissue.

[5] The species produces abundant reproductive structures (apothecia), which are brown to blackish disc-shaped organs partially embedded in the thallus.

The spores are divided into two cells by a central wall (septum) and measure 60–105 by 25–60 micrometres, with a distinctive net-like (reticulation) pattern on their surface.

[5] Like other lichens, S. lbispora is a symbiotic organism containing photosynthetic partners: its primary photobiont is a green alga (Coccomyxa), while it also contains colonies of cyanobacteria (Nostoc) in specialised structures called cephalodia.

The species has been documented across several European countries, including France, Iceland, Norway, Spain, Sweden, Austria, and Switzerland.