Search on : Taxa descriptions

 


   
Literature:
 
Page number:664 
Remarks (internal):The uniformly cream to buff, azonate and tomentose pileus and straw-coloured pore surface distinguish basidiocarps of T. pubescens from those of other species in the so-called Coriolus group. The microscopic characters of all these are virtually identical. Basidiocarps of T. pubescens are very rapidly eaten by insects and collections should be put in a deep freezer or fumigated immediately after collecting. 
Description type:Non-original description 
Description:Trametes pubescens (Schumach.: Fr.) Pilát Fig. 361 Atl. Champ. Europ. 3:268, 1939. - Polyporus pubescens Schumach.: Fr., Syst. Mycol. 1:367, 1821. - Boletus pubescens Schumach. Enumer. Plant Saell. 2:384, 1803. Basidiocarps annual, sessile or effused-reflexed, up to 6 cm wide, pilei dimidiate, often in imbricate clusters, thin, coriaceous; upper surface tomentose to finely pubescent or almost glabrous, cream colour to warm buff, azonate or faintly zonate; pore surface cream colour to pale straw coloured; the pores angular, 3-5 per mm; dissepiments becoming thin; context white to cream, tough-fibrous, azonate, up to 5 mm thick; tube layer cream colour ed to pale buff, up to 4 mm thick.
Hyphal system trimitic; contextual generative hyphae thin-walled, hyaline, rarely branched, with clamps, 2-4 µm in diam; contextual skeletal hyphae thick-walled, hyaline, with occasional branching, nonseptate, 5-10 µm in diam; contextual binding hyphae thick-walled, nonseptate, much branched, 1.5-4 µm in diam; tramal hyphae similar.
Cystidia absent; fusoid cystidioles present, 15-19 x 4-5 µm ; hyphal pegs usually present.
Basidia clavate, 4-sterigmate, 14-22 x 4.5-6 µm, with a basal clamp.
Basidiospores cylindric, slightly curved, hyaline, smooth, negative in Melzer's reagent, 5-7 x 2-2.5 µm.
Type of rot. White rot of dead hardwoods.
Cultural characteristics. See Nobles, 1948, 1958, 1965; Stalpers 1978. Sexuality. Heterothallic and tetrapolar (Nobles et al., 1957).
Substrata. Dead wood of numerous hardwood genera Acer, Alnus, Betula, Castanea, Corylus, Eucalyptus, Fagus, Fraxinus, Ostrya, Populus, Prunus, Quercus, Salix, Tilia
and Ulmus.
Distribution. Widely distributed in Europe north to Finnmark (71 °N) in Norway, seemingly more common in the northern parts than in the south. Circumpolar in the boreal-temperate zone.

 
Taxon name: