Basidiocarp annual, coriaceous, solitary of often imbricate, laterally attached. Pilei applanate or effused-reflexed, sometimes resupinate, 7-30mm in diam 1-3mm thick. Upper surface wood color to ochraceous, glabrous, often polished, margin acute, applanate, entire or lacerate. Pores alveolate, angular of centrally with flattened spines irregular in length and shape, 0.5-2mm long. Context up to 1mm thick, cream or ocher. Hyphal system dimitic, generative hyphae 2.5-3 μm in diam, branched, septate, with clamps, skeletal hyphae up to 4.0 μm in diam. Basidiospores oblong ellipsoid, smooth, hyaline, IKI-, 4-4.5 × 1.5-2 μm.
Specimens：
Taiwan, Taichung: Tungshih, alt. 300-400 m, on dead stem of Liquidambar formosana Hance, Apr 1992, TFRI 317. Hsinchu: Kuanwu, alt. 1500-2000 m, on dead hardword, Jul 1992, TFRI 408.
Habitat：
Lignicolous causing white rot of wood.
Distribution：
Australia, New Zealand, Asia.
References：
Chang, TT. 1994b.
Provided：
T. T. Chang
Note：
This fungus was originally assigned to the genus Irpex (I. brevis Berkeley). However, Irpex is with simple septate hyphae, so Aoshima transferred I. brevis to Coriolus brevis. Some mycologists treated Coriolus as a synonym of Trametes Fr., while others have treated that Coriolus should be taken as a genus of its own. Coriolus is taxonomically valid and legitimate.
Phylum：Basidiomycota >> Class： Basidiomycetes >> Order： Poriales 
BCRC Number：