Thallus: pale greenish-grey to stramineous, minute, caespitose, rigid, up to 1.0 cm high; branching subdichotomous, irregular, narrow thalli densely branched, broad thalli sparsely branched; branch width 0.1 - 2.0 mm, exceptions 6 mm, branches solid, flat to subterete, narrow branches nodular, apices broad and blunt; surface shiny; holdfast delimited or diffuse, soralia marginal and laminal, round to ellipsoidal, becoming fissural on the upper surface occurring on eroded areas of the lower surface and at the apices. Apothecia rare, laminal near the branch apices, rarely terminal, disc 1.0 diam., concave, margin thick, entire; spores unknown (Stevens 1987: 155).

Chemistry: Sekikaic acid (major), 4'-0-demethylsekikaic acid (trace), + several terpenes and usnic acid (Stevens 1987: 155).

Ecology: Saxicolous on siliceous rock, e.g. granite, quartzite, dolerite (Stevens 1987: 155).

Molecular data: Genbank

Distribution: Australia. Database

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