Macroscopic characters: Basidiocarps resupinate, widely effused, forming longitudinal areas, adnate, very thin, 38–87 μm thick, 1–2 × 9–13 cm, ceraceous, even, rigid in appearance, more or less pruinose, narrowly crossly cracked, tilleul-buff or seashell pink, turning wood brown to clove brown or black in 5 or 15% KOH; margins thining out, pruinose, concolor-ous, or abruptly cutting off and becoming distinctly demarcated.
Microscopic characters: Basal layer of context almost none; intermediate layer of context composed of longitudinally interwoven gelatinized hyphae; thickening of the basidiocarps by repititive context; hyphae 2.8–4 μm wide, thin-walled, smooth, septate, without clamp connections, extremely compact, even gelatinized, obscure; cystidia numerous, irregularly immersed or slightly projecting up to 17.5 μm high, fusiform, acute to acuminate at apex, thin- to thick-walled, not encrusted or encrusted with rough crystals, aseptate, without clamp connections, with walls not dissolved in 5% KOH, about 30 μm long, 6 μm wide (not including crystals), up to 10 μm wide including crystals, not radicate, with narrow pedicels, 5 μm wide; gloeocystidia absent; hymenial layer 25–40 μm thick, arranged in compact pali-sade; paraphyses cylindrical, flexuous, rounded at apex, 3–4 × 35 μm ; basidia short clavate to subclavate, 4–5.2 × 15–20 μm, with 2–4 basidiospores; sterigmata curved, 1 μm wide at base, 3–5 μm long; basidiospores oblong or oblong-ellipsoid, suballantoid, slightly curved on one side, depressed on other side. attenuate and acute towards base, (5)–7–(8) × (2.8)–3– (4.2) μm, strongly apiculate, smooth, thin-walled, with several droplets, non-amyloid.
Specimens：
Taipei Hsien, Chungho Hsiang, Yuentong Temple, on the road side, under the broad-leaved forests, alt. 300 m, Nov. 25, 1975, S.-H. Lin (NTU-3903, 3396).
Habitat：
On the dead branches of broad-leaved trees.
Distribution：
Europe, North and South America, South Africa, New Zealand, Kamchatka Peninsula, China, Japan and Taiwan.
References：
Lin, SH. and Chen, ZC. 1990.
Provided：
S. H. Lin
Note：
This species is characterized by (1): fruit bodies turning wood brown or clove brown to black in 5% KOH or 15% KOH, (2): basidiospores 3 × 7–8 μm, oblong and slightly curved, (3): hymenial surface finely crossly cracked, even, tilleul-buff or seashell pink (4): cystidia thin- to thick-wall, smooth or encrusted with coarse crystals, and (5): hyphae generally 3–3.5 μm wide, without clamp connections, septate. It is very closely related to Peniophora quercina (Pers.) Cooke, but the latter has larger basidiospores and basidia, thicker fructifications, and the hyphae with clamp connections (Hayashi, 1974). On the whole, we are almost unable to distinguish it from Peniophora ravenelii Cooke., because they are similar in the characters of hyphae, cystidia, texture and hymenial surface, except in the color of the basidiocarps and in their color change to KOH solution.
Phylum：Basidiomycota >> Class： Basidiomycetes >> Order： Polyporales 
BCRC Number：