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Page number:61 
Remarks (internal):This species is very similar to P. magnoliae. How-ever, P. chrysosporium has longer cystidia, broader spores, smaller basidia and lacks densely branched hyphae. These characters are supported by cultural characters. For further discussion see P. magnoliae.
Phanerochaete chrysosporium is frequently isolated from wood chip piles where it causes substantial wood loss (Burdsall and Eslyn 1974). Attempts are being made to harness its white rotting ability in a biomechanical pulping procedure (Eriksson and Vallander 1980).
 
Description type:Non-original description 
Description:Phanerochaete chrysosporium Burdsall in Burdsall et Eslyn, Mycotaxon 1: 124. 1974. FIG. 15
=Phanerochaete macrocystidiata Hallenb., Iranian J. Plant. Path. 14: 65. 1978.
Anamorph: Sporotrichum pulverulentum Novobranova, Akad. Nauk U.S.S.R., Bot. Inst. Nov. Sist. Niz. Rastenii 9: 180. 1972.
= Chrysosporium lignorum Bergman et Nilsson (nom. nud., nom. invalid., Article 36), Dept. Forest Prod., Roy. Coll. Forest., Stockholm, Res. Notes No. 53, p. 28. 1966.
Holotype: HHB 6251, on Platanus wrightii S. Wats., 25 VIII 1971, Guadalupe Canyon, Peloncillo Mts., Cochise County, Arizona, USA, in herb. CFMR; isotypes in herb. BPI, Ariz.
Basidiocarps broadly effuse, membranous, moist when fresh, fertile area "yellowish white" (3A2) to "light brown" (5D5), up to 0.25 mm thick, loosely attached or separable in small pieces, smooth, continuous, not cracking; subiculum byssoid, white; margin rather abrupt or up to 2 mm broad, pruinose to farinaceous, very thin, irregular in outline, white.
Hyphal system monomitic. Subiculum a textura intricata, hyphae (3.5-)4.5-6(-7) diam, hyaline, thin walled or with walls up to 1 µm thick, simple septate, branched at nearly right angles, walls smooth near substrate to heavily encrusted with large hyaline crystals near subhymenium; subhymenium up to 75 µm thick, a compact textura intricata-porrecta, hyphae 2.5-4 µm diam, thin walled to firm walled, simple septate, somewhat agglutinated often collapsed; cystidia cylindrical, arising at various levels in the thickened subhymenium, 60-150(-250) x 6.5-9 µm, obtuse at apex, projecting up to 70 µm, thin walled to firm walled, hyaline, smooth; basidia clavate, 22-35 x 5-6 µm, hyaline, thin walled, 4-sterigmate, sterigmata 4-5 µm long; basidiospores ellipsoid, adaxially flattened, (5.5-)6-7.5(-9) x 3-4 µm, hyaline, thin walled, smooth, Melzer's -, acyanophilous.
Habitat: On fallen hardwood branches, and in piles of stored wood chips; causing a white rot.
Distribution: North America, Europe, and Iran; probably circumpolar in the temperate zone.
 
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