Observation 160553: Xerocomellus chrysenteron (Bull.) Šutara

When: 2014-02-28

Collection location: Zadnja Trenta Valley, East Julian Alps, Posočje, Slovenia [Click for map]

46.3982° 13.7005° 1000m

Who: amadej trnkoczy (amadej)

No specimen available

Xerocomus chrysenteron
Red Cracking Bolete, DE: Echter Rotfussrӧhrling
Slo.: rdečebetna polstenka

Dat.: Oct. 09. 2013
Lat.: Long.:
Code: Bot_759/2013_DSC8543

Habitat: Mixed forest, Picea abies and Fagus sylvatica dominant, almost flat terrain, on overgrown alluvial deposits, calcareous ground; full shade, humid place, partly protected from direct rain by tree canopies; average precipitations ~ 3.000 mm/year, average temperature 4-6 deg C, elevation 1.000 m (3.300 feet), alpine phytogeographical region.

Substratum: on lightly overgrown soil under a large Picea abies near its roots.

Place: Zadnja Trenta valley, left bank of (mostly) dry Soča river bed, north of Bavški Grintavec mountain, East Julian Alps, Posočje, Slovenia EC

Comments: This very beautiful mushroom was growing solitary; pileus diameter 9 cm; SP faint, brown, oac839. No typical red cracks on pileus surface observed. This species is considered very variable. Red stipe and cracked pileus surface with red context seen in the cracks seem to be two most distinctive traits of this bolete, however, they may also be totally absent.

Nikon D700/Nikkor Micro 105mm/f2.8

Species Lists



Proposed Names

85% (1)
Eye3 Eyes3
Recognized by sight
Used references: (1) G. Kibby, British Boletes, Copyright Geoffrey Kibby (2011), p 47.
(2) R.M. Daehncke, 1200 Pilze in Farbfotos, AT Verlag (2009), p 46.
(3) R. Lueder, Grundkurs Pilzbestimmung, Quelle & Meyer (2008), p 163.
(4) M. Bon, Parey’s Buch der Pilze, Kosmos (2005), p 42.
(5) S. Buczacki, Collins Fungi Guide, Collins (2012), p 396.
(6) Personal communication with Mr. Bojan Rot, www.gobenabovskem.com
Based on microscopic features: Spores smooth. Dimensions: 16.0 (SD= 1.3) x 5.1 (SD= 0.3) μ, Q= 3.1 (SD= 0.2), n= 30. Olympus CH20, NEA 100x/1.25, magnification 1.000 x, oil, in water. AmScope MA500 digital camera.
Based on chemical features: Taste and smells faint.

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Eye3 = Observer’s choice
Eyes3 = Current consensus


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Created: 2014-02-28 14:52:59 EST (-0500)
Last modified: 2014-02-28 14:53:05 EST (-0500)
Viewed: 43 times, last viewed: 2018-04-09 13:10:50 EDT (-0400)
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