Tropical Lichens: Their Systematics, Conservation, and Ecology (Oxford): 87 (1991).

Protolog: Thallus corticola, membranaceus, griseo-viridis. Lobi 1-1.5 cm lati, superne laaevigati vel foveolati vel rimulosi, marginibus crenatis vel laciniatis, laciniis simplicibus vel repetite ramosis, 1-2(-4) mm latis. Cilia tenuia, 4-6 mm longa, ad margines loborum laciniarumque. Soredia isidiaque nulla. Apothecia ignota. Conidia filiformia, 10-16 µm longa. Acidum lecanorinum et atranorinum continens.

Protolog type data: Type: Tanzania. Tanga Province, Lushoto District, West Usambara Mts. Kwagoroto Summit WNW of Mazumbai village, 04°48'S, 38°29'E, in montane rainforest, 1850-1950 m coll. X 1988, H. Krog 2T 10/64 (O-holotype).

Type locality: Tanzania, Tanga Province, Lushoto District, West Usambara Mts. Kwagoroto Summit WNW of Mazumbai village, in montane rainforest, 1850-1950 m, 10.1988, H. Krog 2T 10/64 (O - holotype).

Type locality coordinates: 04°48'S, 38°29'E.

Molecular barcode: Data lacking.

Thallus: foliose, thin, fragile, loosely attached, pale grey-green. Lobes 1-1.5 cm broad, crenate, or with simple or repeatedly branched laciniae of uneven width, mostly 1-2(-4) mm wide. Cilia numerous, slender, simple or bifurcate, 4-6 mm long, at margins of lobes and laciniae. Upper side even or minutely pitted peripherally, appearing coarsely maculate centrally, with the cortex cracking and often flaking. Medulla white. Underside black, with a brown or mottled marginal zone; lower cortex cracking and often flaking; rhizines simple, short, sparse. Soredia and isidia absent. Apothecia unknown. Conidia filiform, 10-16 µm long (Krog 1991: 87).

Photobiont: Data lacking.

Chemistry: TLC lecanoric acid, atranorin (Krog 1991: 87).

Ecology: Corticolous.