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Page number:100 
Remarks (public):The species is recognized by the columnar basidiocarps with densely sulcate, dark brown pilei. 
Description type:Non-original description 
Description:Phellinus acontextus Ryvarden, Mycotaxon 20:147, 1984.
Basidiocarps annual to perennial, pileate, imbricate, columnar to pendant, brittle and lightweight when dry, margin sharp; pilear surface dark brown to almost black
towards the base, glabrous, densely zonate with narrow sharp ridges, with a thin, black cuticle; pore surface dark umber brown with a cinnamon glance when turned in incident light, pores 5-8 per mm, tubes concolorous with the pore surface, slightly zonate, up to 3 cm long; context lacking or extremely thin close to the base, cinnamon.
Hyphal system dimitic; generative hyphae simple-septate, hyaline, 2-3 µm wide; skeletal hyphae thick-walled, golden to pale rusty brown, 2-4 µm wide.
Setae absent.
Basidia narrowly clavate, 15-17 x 4-5 µm, with four sterigmata.
Basidiospores ellipsoid, rusty brown, 5.5-6.5 x 3.5-4 µm.
Substrata. On conifers.
Distribution. Asian species, in East Asia known from Japan.
Taxon name: