Bull. Soc. linn. Normandie, sér. 2 4(2): 139 (1870).
Thallus: fruticose, erect to subpendulous, up to 3 cm long, exceptionally to 12 cm; pale green to grey-green; branching subdichotomous, sparse; branch width 0.5 - 1.0 (- 3.5) mm, branches compressed, narrow and canaliculate with attenuate apices or broad and flat with blunt apices; surface matt or shiny, marginal tuberculate pseudocyphellae frequent, laminal punctiform pseudocyphellae on broad branches; holdfast delimited; soralia absent. Apothecia sparse to numerous, marginal and subterminal; disc 1 - 4 mm diam., concave, plane to convex; margin entire; spores ellipsoid, straight to slightly curved, 11 - 12 (- 16) x 4 - 5 (- 6) µm.
Algae: Green alga.
Chemistry: Usnic acid.
Ecology: Corticolous.
Molecular data: Genbank
Distribution: Database
Note:
(Australian taxa) Sekikaic acid, homosekikaic acid, ramalinolic acid, 4'-0-demethylsekikaic acid, paludosic acid, 4'-0-methylnorsekikaic acid, and usnic acid or divaricatic acid ± faint sekikaic acid and usnic acid.