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Page number:229 
Remarks (public):This species is closely related to D. confragosa and may be interpreted as a southern ecotype. The main characters separating it from D. confragosa are the occurrence of lamellae, and the often rather small basidiocarp with a completely reddish pileus. D. septentrionalis has a completely different area of distribution and with thin  
Description type:Non-original description 
Description:Daedaleopsis tricolor (Pers.) Bond. & Sing. - Ann. Mycol. 39:64, 1941. - Daedalea tricolor Pers., Mycol. Europ. 2:12, 1828. -Lenzites tricolor (Pers.) Fr., Epicr. Mycol. p. 406, 1838. - Daedalea sepiaria b. tricolor Fr., Syst. Mycol. 1:334, 1821. - Agaricus tricolor Bull.. 1-list. de Champ. 2:380, 1791, non Agaricus tricolor Alb. & Schw.:Fr.. Syst. Mycol. 1:166. 1821.
Basidiocarps annual, pileate. sessile, often semicircular and imbricate. applanate, up to 14 cm wide and long. 1-3 cm thick at the base; upper surface glabrous. sulcate and concentrically zonate, at first ashy grey to pale brown. later becoming red to deep bay in zones from the base or in distinct spots; pore surface brown, poroid to lamellate with transitions, but never entirely poroid. lamellae dichotomously branched. pores usually more prominent close to the base. lamellae more pronounced towards the margin, sometimes with concentric poroid zones, pores angular to sinuous. 1-2 per mm. 0.5 to 1 mm wide, up to 3 mm long, lamellae 10-17 per cm measured tangentially; tube layer or lamellae up to 1.4 cm deep; context pale brown, tough and homogeneous with a thin. dark cuticle from the base in deep bay specimens.
Dendrohyphidia present when basidia are absent. hyaline, with antler-like branching at the tips, arising in the subhymenium from clamps on the generative hyphae. thin-walled at the tip, brown and thick-walled at the base, up to 30 µm long.
Basidia, basidiospores and hyphal system as in D. confragosa.
Type of rot. White rot in dead hardwoods.
Cultural characteristics and sexuality. Unknown.
Substrata. Especially on Salix, but also noted on Alnus, Betula, Corylus, Fagus, Fraxinus, Juglans, Malus, Prunus, Salix and Sorbus.
Distribution. A rare Central and Western European species, not known from Fennoscandia and Denmark. North to north-west Germany, while it is absent in the north eastem part of this country. Its occurrence in the Mediterranean oak zone is uncertain. It seems often to occur along rivers and small streams.
 
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