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Page number:224 
Description type:Culture description 
Description:PHANEROCHAETE CHRYSOSPORIUM Burds. in Burds. & Eslyn
Mats white to Pale Ochraceous-Salmon, thin to moderately thick, appressed and subfelty areas interspersed among slightly raised and farinaceous areas, fertile areas white to Light Buff, smooth to odontoid, developing at mat periphery at 2 wk, by 6 wk mats white to Cartridge Buff, moderately thick to thick, appressed to slightly raised, felty to farinaceous, fertile areas white to Cream-Buff or Chamois, thick, smooth to tuberculate; margins even, appressed to slightly raised, arachnoid to subfelty or silky to fimbriate; odor absent at 2 wk, musty at 6 wk; agar bleached at 2 and 6 wk; some isolates fruiting by 2 wk.
MEA 90+ ; TAA -, 0; GAA -, 50-80; 70-90+ ; TyA -, 90+
Microscopic characters: Marginal hyphae 4.5-6.5 µm diam, thin walled, simple septate, sparsely branched, long celled. Submerged hyphae 2.5-7 µm diam, thin walled to thick walled, simple septate, moderately branched. Aerial hyphae 3-9 µm diam, slightly thick walled to thick walled, simple septate, sparsely to moderately branched, sometimes moderately encrusted with tiny pale yellow crystals at 2 wk. Chlamydospores globose, up to 50-60 µm diam, thick walled, terminal or intercalary, absent or rare throughout mats at 6 wk. Conidia blastic, globose to ellipsoid, truncate at one end, 5.5-9 x 5.5-7 lim, slightly thick walled, smooth, abundant in aerial mats at 2 and 6 wk, borne on poorly differentiated, branched conidiophores. Arthroconidia cylindrical, 10-15 x 2-3 µm, thin walled, intercalary, absent or numerous in aerial mats at 2 and 6 wk.
Sexuality: Homothallic (Alic & al. 1987, p. 1466) or heterothallic and bipolar (Thompson & Broda 1987).
Cultural descriptions: Burdsall & Eslyn (1974, p. 127); Stalpers (1978, p. 182; 1984, p. 18).
Species codes: 1. 6. (7). 14. 33. 34. 35. 36. 40. 41. (48). (51).54.55. (57). (59). 1. 6. 14. 24. 32. 33. 34. 35. 36. 40. 41. (48).54.55. (Burdsall & Eslyn 1974, p. 129). 1. 6. (7). 14. (25). 26. 33. 34. 35. 36. 40. 41-42. (48).54.55. (Stalpers 1984, p. 19).
Remarks: The anamorphic state of P. chrysosporium is Sporotrichum pulverulentum Novobranova. Phanerochaete chrysosporium is reported from southern Arizona and is frequently found in wood chip piles throughout eastern North America and Europe (Burdsall & Eslyn 1974; Burdsall 1985). It causes a white rot of gymnospermous and angiospermous branches and wood (Burdsall 1985). It is most similar to P. magnoliae in culture (Table 12). Because of the rapid growth rate on MEA, negative reactions on; GAA and; TAA, and numerous conidia, P. chrysosporium is readily identified in culture (Table 12).
 
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