Thallus: foliose, green carpet of imbricate, + flattened, up to ca. 1 mm long, deeply incised lobes, main branches ca. 30 µm wide, side branches ca. 15-23 µm wide; mycobiont forming a single layer of continuous, hyaline, rather thick-walled, strongly flattened, cortical cells, which are polygonal in surface view, staning only a little with cotton blue, and provided with papillae, increasingly densely so towards the apices of the branches; rhizoids sometimes seen as a few, simple, hyaline hyphae from the thallus. Ascomata: There are numerous perithecioid bright-coloured ascomata in the type collection, but it is uncertain if they belong to Psoroglaena (Eriksson 1992: 12).

Photobiont: probably a chlorococcoid green alga, forming a central core of polystichous, rounded, ca. 5-6 µm wide cells with pyrenoid.

Chemistry: No lichen substances.

Ecology: Corticolous.

Molecular data: Genbank

Distribution: Database

Note: