Name: Daedaleopsis confragosa
Author: (Bolton) J. Schröt.
Citation: in Cohn, Krypt.-Fl. Schlesien (Breslau) 3.1(25–32): 492 (1888)
Deprecated Synonyms: Daedalea confragosa, Polyporus bulliardii (Fr.) Pers., Lenzites confragosa, Ischnoderma tricolor, Daedalea tricolor, Daedaleopsis rubescens, Trametes tricolor, Polyporus confragosus, Trametes confragosa, Agaricus confragosus, Lenzites tricolor, Trametes rubescens (schumach.)pilat, Boletus confragosus, Striglia confragosa, Daedalea bulliardii Fr., Ischnoderma confragosum, Cellularia tricolor, Amauroderma confragosum, Trametes bulliardii (Fr.) Fr., Agaricus tricolor, Daedalea rubescens, Daedalea sepiaria var. tricolor, Lenzites tricolor var. rubescens, Daedalea confragosa subsp. rubescens, Daedaleopsis confragosa var. confragosa, Daedalea confragosa f. rubescens, Daedalea confragosa f. bulliardii (Fr.) Domański, Trametes rubescens var. tricolor, Trametes confragosa f. bulliardi (Fr.) Pilát, Trametes confragosa f. rubescens, Daedaleopsis confragosa var. bulliardii (Fr.) Ljub., Daedaleopsis confragosa var. rubescens
Misspellings: Daedaleopsis conflagosa
Habitat/range: On hardwoods, especially Salix and Betula species, causing a white rot. Widespread in the southern third of BC and in the Prince George area. Elsewhere in western North America, known from YT, AB, WA, MT, AZ, and NM.Basidiomata variable, sessile or reflexed, sometimes imbricate; pileus dimidi- ate, 2–10 cm wide × 3–15 cm long × 0.5–5 cm thick, tough, corky; pileus surface variable grey, beige, brown, nearly black, soft-velvety to glabrous; context up to 2.5 cm thick, pale buff to brown, leathery, zonate; tubes tinted pale pink, up to 2.5 cm deep; pore and lamellae surfaces whitish, beige to pale brown; lamellae buff to pale brown; pores 0.5–1.5 mm diameter, round, radially elongated, daedaleoid to lamellate.
Hyphal system trimitic. Generative hyphae 2–6 μm diameter with clamp connections; skeletal hyphae 4–7 μm diameter; binding hyphae 2.0–4.5 μm diameter; cystidia lacking; dendrohyphidia in the hymenium with 3–8 short, acute branches in the apical 30 μm, walls thick, hyaline; basidia narrowly clavate, 30–45 × 4–5 μm, four sterigmate; basidiospores allantoid, 7–11 × 2.0– 2.5 μm, walls hyaline, thin, smooth, neither amyloid nor dextrinoid.
Notes: An extremely variable polypore, especially in the colours, and the size and shape of the pores. Some actively growing, light-coloured, young speci- mens stain dull vinaceous red where bruised.
Daedaleopsis confragosa is commonly known as the Thin-maze Flat Polypore or the Blushing Bracket. This fungus is characterized by a white spore-bearing surface with elongated, maze-like pores.
The pileus is wide and kidney-shaped, with a fibrous texture ranging from 3-15.5 cm (1 1/8-6 in). Concentric zones are visible on the top of the pileus. Usual colors of the top of the pileus range from creamy white to grayish to pale brown. Handling of the pileus can cause reddish-brown bruising when the specimen is fresh. With KOH, all parts of the pileus turn black. There is no stipe on this polypore.
The spore print is white. The spores are hyaline with sizes of 7-11 um, 2-3 um, with a cylindrical to sausage shape, and smooth edges.
D. confragosa can be found solitary, scattered, or in groups. This organism is found on decaying hardwoods, causing a white rot. The fungus is persistent year-round. This species is considered to be common.
D. confragosa is inedible because of its tough, fibrous texture.
This organism has previously been referred to as Daedalia confragosa.
Created: 2007-06-19 02:22:18 CDT (-0400) by Nathan Wilson (nathan)
Last modified: 2018-03-28 03:50:48 CDT (-0400) by Chaelthomas (Chaelthomas)
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