Exidia nigricans (With) P. Rob (1966), syn.: Exidia plana (Wigg. 1780; Schleich. 1821) Donk 1966 var. plana, Exidia glandulosa (Bulliard 1788), Exidia glandulosa Fr. Witches ButterSlo.: lezasta zamazankaDat.: Jan. 25. 2014Lat.: 46.36165 Long.: 13.69789Code: Bot_782/2014_DSC9821Habitat: modestly southeast inclined mountain slope, mixed forest, Fagus sylvatica and Picea abies dominant; overgrown scree, rocks and boulders, calcareous ground, relatively warm and dry place, partly protected from direct rain by tree canopies, average precipitations ~ 3.000 mm/year, average temperature 7-9 deg C, elevation 700 m (2.300 feet), alpine phytogeographical region.Substratum: fallen Fagus sylvatica branch in its initial disintegration stage. Place: Lower Trenta valley, on the trail from 'Na melu' place to 'Na skalah' settlement, at the foot of Mt. Srebnjak, East Julian Alps, Posoje, Slovenia EC.Comments: Growing in groups of many confluent fruit bodies; clump's dimensions up to about 8 x 3.5 x 2.5 cm.Spores smooth. Dimensions: 12,7 [14,2 ; 14,8] 16,3 x 3,6 [4,1 ; 4,3] 4,8 microns, Q = 2,8 [3,4 ; 3,6] 4,2; N = 40; C = 95%, Me = 14,5 x 4,2 microns; Qe = 3,5. Basidia dimensions: 15.7 [18 ; 19.7] 22.1 x 6.1 [9.8 ; 12.3] 16 microns, Q = 1.2 [1.6 ; 1.9] 2.3; N = 15; C = 95%, Me = 18.9 x 11.1 microns; Qe = 1.8. Olympus CH20. NEA 40x/0.65, magnification 400x, in water, congo red. AmScope MA500 digital camera.Herbarium: Mycotheca and lichen herbarium (LJU-Li) of Slovenian Forestry Institute, Vena pot 2, Ljubljana, Index Herbariorum LJFRef.:(1) P. Roberts, Exidia nigricans: a new and legitimate name for Exidia plana. Mycotaxon. 109:219-220 (2009) cited in MycoBank.(2) G.J. Krieglsteiner (Hrsg.), Die Grosspilze Baden-Wrttembergs, Band 1, Ulmer (2000), p 98. (3) S. Buczacki, Collins Fungi Guide, Collins (2012), p 584.(4) J. Breitenbach, F. Kraenzlin, Eds., Fungi of Switzerland, Vol. 2.Verlag Mykologia (1984), p 62.(5)
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