date of photo Feb 11, 2016
latitude 46.36179 longitude 13.70498
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location
Lower Trenta valley, upper part of pastures belonging to the abandoned farm house Koc, Trenta 3, East Julian Alps (Posočje, Slovenia)notes Slo.: pisana ploskocevka - Habitat: Young, mixed forest and bushes, Fagus sylvatica, Picea abies, Ailanthus altissima, Fraxinus ornus, Ostrya carpinifolia, Corylus avellana dominant; overgrown former pasture; slightly inclined mountain slope, south aspect; shallow, skeletal, calcareous ground; relatively warm place; partly protected from direct rain by tree canopies; average precipitations ~ 3.000 mm/year, average temperature 7-9 deg C, elevation 610 m (2.000 feet), alpine phytogeographical region. Substratum: dead, still standing Fagus sylvatica trunk Comments: Trametes versicolor is a very common species. Several authors consider it as the most frequent decomposer of wood of deciduous trees. It almost always appears in large, sometimes very beautifully colored, colonies. But it is also a very variable species, particularly in colors of distinctly zonate pilei. Because of that confusion with other species of genus Trametes is quite possible. The best distinguishing traits of Trametes versicolor for me are very small pores (up to 5/mm) and a distinctive, but very thin dark brown line between context and tomentum in cross-section. But one should cut pilei with a very sharp knife, or better with a razor blade. In this way the line remains undamaged and clearly visible. Growing in a group of several hundreds of pilei; pilei dimensions up to 4.6 x 2.9 cm and up to 6(8) mm thick, pore layer 1.5(2.5) mm thick; taste distinct, unpleasant, on rotten something?; smell mild, mushroomy; pore density 43/cm (SD=5.3, n=8), SP whitish-beige, oac 851. Spores smooth. Dimensions; 5.3 [6.1 ; 6.4] 7.1 x 1.8 [2 ; 2.1] 2.4 microns; Q = 2.5 [2.9 ; 3.1] 3.5; N = 40; C = 95%; Me = 6.2 x 2.1 microns; Qe = 3. Olympus CH20, NEA 100x/1.25, magnification 1.000 x, oil, in water, aniline blue, in vivo. AmScope MA500 digital camera. Herbarium: Mycotheca and lichen herbarium (LJU-Li) of Slovenian Forestry Institute, Večna pot 2, Ljubljana, Index Herbariorum LJF Ref.: (1) L. Ryvarden, I. Melo, Poroid fungi of Europe, Synopsis Fungorum 31., Fungiflora (2014), p 421. (2) A. Bernicchia, Polyporaceaes l., Fungi Europaei, Vol. 10., Edizioni Candusso (2005), p 537. (3) S. Buczacki, Collins Fungi Guide, Collins (2012), p 508. (4) R. Lueder, Grundkurs Pilzbestimmung, Quelle & Meyer (2008), p 341. (5) R. Phillips, Mushrooms, Macmillan (2006), p 317. (6) J. Breitenbach, F. Kraenzlin, Eds., Fungi of Switzerland, Vol.2., Verlag Mykologia (1986), p 268.camera Nikon D700/Nikkor Micro 105mm/f2.8
contributor's ID # Bot_933/2016_DSC0355 photo category: Fungi - fungi
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