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Literature:
 
Page number:124 
Remarks (public):Among the Amylostereum species, it is characterized by the monomitic hyphal system and the resupinate basidiome. 
Description type:Non-original description 
Description:Amylostereum laevigatum (Fr.) Boidin, Revue Mycol., Paris 23(3): 345,1958.
Bas.: Thelephora laevigata Fr., Elench. fung. (Greifswald) 1: 224, 1828.
Basidiome resupinate, effused, brownish, hymenial surface even. Hyphal system monomitic, hyphae with clamps very difficult to discern. Cystidia cylindrical with tapering apex, 40-60 x 7-8 µm, thick-walled, hyaline, encrusted in the apical part (15-25 µm), yellowish brownish in Melzer, very numerous and predominant in hymenium and context, young cystidia thin-walled, pointed, not encrusted. Basidia clavate, 15-20 x 4-6 µm, thin-walled, with 4-sterigmata, and basally clamped. Basidiospores, cylindrical to fusiform, frequently collapsed, 7-8(-12) x 3-4 µm, thin-walled, smooth, amyloid.
Distribution in Europe: Switzerland, Russia, Estonia, France, Germany, Belarus, Poland, Croatia, Macedonia, Bosnia and Herzegovina, Serbia, Belgium, United Kingdom, Slovenia, Bulgaria, Portugal, Sweden, Denmark, Norway, Finland, Italy, Spain, Netherlands, and the Caucasus. Common species in Europe and frequent in Italy.
Substrata: it occurs on Cupressus sempervirens, Taxus baccata, Juniperus communis and J. oxycedrus.
 
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