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Page number:296 
Remarks (public):G. taxicola can be confused with G. dichrous, but is easily distinguished as the latter species has clamps on the generative hyphae and occurs on hardwoods. Ceriporia purpurea is similar but has a lighter, more reddish colour, a distinctly poroid hymenophore, and longer spores (5-7.5 µm). 
Description type:Non-original description 
Description:Gloeoporus taxicola (Pers.:Fr.) Gilbn. - Mycotaxon 22:364, 1985. - Xylomyzon taxicola Pers., Mycol. Europ. 2:32, 1825. - Xylomyzon taxicola Pers.:Fr., Elench. Fung. 1:62, 1828.
Basidiocarps annual, resupinate, often widely effused, up to 4 mm thick, tough and waxy when fresh, brittle and hard when dry, separable to slightly adnate; pore surface reddish to deep purplish or almost black, pores angular, 2-4 per mm, tubes with continuous hymenium over the dissepiments; margin white and wide, conspicuous in contrast to the coloured pore surface; context white, soft and cottony to fibrous, up to 2 mm thick; tube layer up to 1 mm thick, concolorous with pore surface.
Hyphal system monomitic; generative hyphae with simple septa, those of the subiculu m and trama slightly thick-walled, up to 6 µm in diam, often encrusted, in the subhymenium and hymenium more delicately thin-walled, smooth, up to 41.m in diam, often branched at right angles, loosely interwoven in the subiculum, more parallel and compact in the trama.
Cystidia absent, but subulate smooth cystidioles present among the basidia, 15-30 x 3-4 µm, simple-septate at the base, quite common in the hymenium which is dense and palisade-like.
Basidia clavate, 4-sterigmate, 15-25 x 4-5 µm, simple-septate at the base.
Basidiospores allantoid to cylindrical, smooth, hyaline, negative in Melzer's reagent, 4.5-6 x 1-1.5 (-2) µm.
Type of rot. Causes a white rot of dead conifers.
Cultural characteristics. See Nobles 1948, 1965; Gilbertson and Lombard 1965; Ginns 1976.
Sexuality. Unknown.
Substrata. On dead conifers, especially Pinus sylvestris, but also on other Pinus species, more rarely on Picea. In North America also reported from hardwoods. Distribution. Rather common in boreal coniferous forests, seemingly rarer in the southern pine region in Europe. Circumboreal in the coniferous forests of the Northern Hemisphere. also in New Zealand and Australia.
 
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