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Page number:68 
Remarks (public):This species is recognized by the soft, floccose, white context and marginal tissue and the dark purplish tubes and pore surface of the basidiocarps. Poria purpurea, which also has purple basidiocarps, lacks the white context and has much larger spores. Entirely resupinate basidiocarps of Polyporus dichrous Fr. may be quite similar, but the context hyphae of that species have abundant clamp connections. 
Description type:Non-original description 
Description:Poria taxicola (Pers.) Bres., Atti Acad. Sci., Lett., Art. Agiati Rovereto III, 3: 80. 1897,
Xylomyzon taxicola Pers., Myc. Europe 2: 32. 1825.
Description of basidiocarps
Basidiocarps annual, soft, becoming rigid when dry, not readily separable; margin sterile, white, soft, fimbriate, up to 2 mm wide, tubes sometimes developing in scattered areas over a soft white mycelial mat; pore surface dark purplish, the pores circular to angular, 4-5 per mm, with thick, entire dissepiments; context white, azonate or with a thin purplish layer, soft, floccose, up to 2.5 mm thick; tube layer dark purplish, distinct from the context, drying rigid, less than 1 mm thick.
Context hyphae hyaline in KOH, thin- to thick-walled, often branched, simple-septate, often partially incrusted, 3-7 µm; in diam; hymenial layer pale brownish; basidia narrowly clavate, 11-12 x 3-4 µm; cystidioles 11-13 x 2.5-4 µm; basidiospores hyaline, smooth, cylindrical or allantoid, 3.5-4 x 1-1.5 µm (Fig. 2, E).
Substratum and rot: Associated with a whitish stringy or laminated rot of dead wood of Picea and Pinus.
 
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