Observation 57983: Stropharia eximia Benedix

When: 2010-06-02

Collection location: Bovec basin, East Julian Alps, Posočje, Slovenia [Click for map]

46.32963° 13.53604°

Who: amadej trnkoczy (amadej)

No specimen available

Code: Bot_427/2010_DSC2612

Habitat: Among tall herbs and grass, near wood-side, semi-ruderal ground, old calcareous river deposits, flat terrain; partly sunny, exposed to direct rain, average precipitations ~ 3.000 mm/year, average temperature 8-10 deg C, elevations 420 m (1.400 feet), alpine phytogeographical region.

Substratum: soil, possibly decomposed tree and other litter.

Place: Central Bovec basin, west of waste-water cleaning station, East Julian Alps, Posočje, Slovenia EC

Comments: Considered as rare, but some authors (if not most of) consider this species as a ‘white’ form of Stropharia rugosoannulata. Growing solitary or two/three fruitbodies together; several fruitbodies found at a distance of 100m (300 feet). Spore print almost brown-black with violet tint. Base of stalk with white mycelium threads. Moderately viscid cap when wet. Pileus diameter of the largest fruit body about 20 cm (7,8 inch) and weight 380 g.

Nikon D700 / Nikkor Micro 105mm/f2.8 and Canon G11, 6.1-30mm/f2.8-4.5

Species Lists


Quite old fruitbodies
Spores of a smaller fruitbody
Spores of the largest fruit body (20 cm diam., weight 380 g)
A smaller fruitbody.
Gils of the very young fruitbody slightly pink.

Proposed Names

57% (1)
Eye3 Eyes3
Recognized by sight
Used references: (1) Personal communication with Mr. Bojan Rot
(2) http://pagesperso-orange.fr/...
(3) http://gobenabovskem.si/... .
(4) http://www.mycodb.fr/...=
(5) A.Poler, ed., Seznam gliv Slovenije (in Slovene), 2nd Ed., Assoc. of Mycol. Soc. of Slovenia (1998), p 71.
(6) http://www.pilzlexikon.eu/... (9,3-12,5/7-9)
(7) R.M. Daehncke, 1200 Pilze in Farbfotos, AT Verlag (2009), p 600.
Based on microscopic features: Spore dimensions (the largest bruitbody): 11 (SD = 0.7) x 7.2 (SD = 0.5) micr., Q = 1.5 (SD = 0.12), n=30; spores thick-walled, with a germ pore. Motic B2-211A, magnification 1.000 x, oil, in water.
Based on chemical features: Taste and smell indistinctive ‘mushroomy’.

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Eye3 = Observer’s choice
Eyes3 = Current consensus


Add Comment
Beautiful documentation Amadej
By: Christian (Christian Schwarz)
2010-11-04 12:12:43 PDT (-0700)

Interesting (but not unexpected) to see a slight correlation between spore size and frb size.

Created: 2010-11-04 11:33:16 PDT (-0700)
Last modified: 2010-11-04 11:33:17 PDT (-0700)
Viewed: 138 times, last viewed: 2017-06-30 10:26:59 PDT (-0700)
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