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Page number:538 
Description type:Non-original description 
Description:Phlebia uda (Fr.) Nakasone, Sydowia 49(1): 72, 1997.
Bas.: Hydnum udum Fr., Syst. mycol. (Lundae) 1: 422, 1821. Syn.: Mycoacia uda (Fr.) Donk, Medded. Nedl. Mycol. Ver. 18-20: 151, 1931.
Basidiome resupinate, adnate, effused, hymenophore odontioid, with aculei up to 1-2 mm long, at first light yellowish, more or less ochraceous when mature, margin more or less fibrillose. Hyphal system monomitic, hyphae clamped, 2-3 ?m wide, hyphae in the aculei encrusted with several crystals. Cystidiols more or less fusoid, slightly projecting. Basidia narrowly clavate, 15-20 x 4-5 ?m, with 4-sterigmata and a basal clamp. Basidiospores narrowly ellipsoid, 5-5.5(6) x 2-2.5 ?m, smooth, thin-walled, IKI-.
Distribution in Europe: Austria, Switzerland, Poland, Russia, Turkey, Estonia, Germany, Poland, Belarus, Hungary, Bosnia and Herzegovina, Croatia, Macedonia, Slovenia, Serbia, Greece, Belgium, United Kingdom, Slovenia, France, Bulgaria, Portugal, Turkey, Sweden, Italy, Denmark, Norway, Switzerland, Finland, Spain, Ukraine, and the Caucasus. Common species in all European countries. Known in Italy from Lombardia, Trentino Alto-Adige, Emilia-Romagna, Toscana, Abruzzo, Calabria, and Sardegna.
Substrata: it occurs mainly on deciduous wood of Fraxinus excelsior, Quercus pubescens, Q. pedunculata, Populus alba, Fagus sylvatica, Alnus viridis, Fagus sylvatica, but also on trunks of Abies alba.
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