Coltricia-perennis_4

Description:

Coltricia perennis (L.: Fr.) Murr.Tiger's Eye, DE: Brauner DauerporlingSlo.: veni trdikovecDat.: Oct. 4. 2013Lat.: 46.40932 Long.: 13.72904Code: Bot_756/2013_DSC8308Picture file names: from Coltricia-perennis_raw_1 to Coltricia-perenis_raw_5.Habitat: mixed wood, Picea abies and Fagus sylvatica dominant, almost flat terrain; under Picea abies canopy; calcareous, mossy ground; in shade; partly protected from direct rain by tree canopies; average precipitations ~ 3.000 mm/year, average temperature 5-7 deg C; elevation 900 m (3.000 feet), alpine phytogeographical region.Substratum: soil among roots of Picea abies or may be on roots themselves.Place: Zadnja Trenta valley, near alpine cottage 'Koa pri izviru Soe', north of access road to the cottage, East Julian Alps, Posoje, Slovenia EC.Comments: This find macroscopically resembles Inonotus tomentosus = Pelloporus tomentosus = Onnia tomentosa with its more or less uniformly yellow-brown, eventually lightly zonate, and flabelliform hut, with yellowish-brown context and growing on (or at) Picea abies roots. Typical Coltricia perennis is usually more distinctly zonate with several thin delicately colored rings. However, spore and basidia dimensions and lack of abundant setae clearly point to Coltricia perennis. Growing solitary. Pileus diameter 9 cm, stipe 2.5 cm long and 12 mm in diameter.Spores smooth, some with oil drops. Dimensions: 5,6 [6,2 ; 6,5] 7,1 x 3,3 [4 ; 4,3] 4,9 microns; Q = 1,3 [1,5 ; 1,6] 1,8; N = 30; C = 95%; Me = 6,3 x 4,1 microns; Qe = 1,5. Basidia clavate. Dimensions; 13.2 [16.9 ; 19.5] 23.2 x 4.6 [5.2 ; 5.7] 6.4 microns; Q = 2.3 [3.1 ; 3.6] 4.4; N = 15; C = 95%; Me = 18.2 x 5.5 microns; Qe = 3.3. Olympus CH20, NEA 100x/1.250, magnification 1.000 x, oil, (spores), NEA 40x/0.65, magnification 400x (basidia), in water. Hypha clamps not seen, setae absent. AmScope MA500 digital camera.Herbarium: Mycotheca and lichen herbarium (LJU-Li) of Slovenian Forestry Institute, Vena pot 2, Ljubljana, Index Herbariorum LJFRef.:(1) M. Bon, Parey's Buch der Pilze, Kosmos (2005), p 320. (2) R. Phillips, Mushrooms, Macmillan (2006), p 300. (3) G.J. Krieglsteiner (Hrsg.), Die Grosspilze Baden-Wrttembergs, Band 1., Ulmer (2000), p 429.(4) R.M. Daehncke, 1200 Pilze in Farbfotos, AT Verlag (2009), p 1048. (5) S. Buczacki, Collins Fungi Guide, Collins (2012), p 478. (6) R. Lueder, Grundkurs Pilzbestimmung, Quelle & Meyer (2008), p 333.