Observation 155806: Guepiniopsis buccina (Pers.) L.L. Kenn.

Code: Bot_775/2013_DSC9434

Habitat: at the foot of a mountain, river bank, modestly NW inclined slope, mixed wood on scree, rocks and boulders, in shade, humid place in shade of a mountain, almost no sun, calcareous ground, partly protected from direct rain by tree canopies, average precipitations ~ 3.000 mm/year, average temperature 7-9 deg C, elevation 525 m (1.720 feet), alpine phytogeographical region.

Substratum: fallen, dead, mostly debarked Fagus sylvatica trunk (diameter about 25 cm) in its late initial stage of disintegration.

Place: Lower Trenta valley, left bank of river Soča, between villages Trenta at Soča, across the river near Soča 46 house, East Julian Alps, Posočje, Slovenia EC

Comments: Growing in groups, many fruit bodies; pileus diameter up to 7-8 mm, about 6 mm high at max; flesh gelatinous but quite firm; SP yellow, oac 856. Spores have been observed twice with quite different results. On the day of observation spores were collected with a soft wet brush directly from the largest fruit body. These spores had no septa. Two days after spore print was analyzed.These spores were mostly three septated as expected and significantly larger. On many germinating spores small spherical conidia can be seen.

This is a widespread species but in literature mostly considered as a rare one. In Britain and Ireland it is very seldom recorded (Ref.: (4)) while Ref.: (5) considers it as rare worldwide.The Bovec region seems to be an exception, because this observation is my fifth here around.

Nikon D700 / Nikkor Micro 105mm/f2.8

Species Lists


Spores collected by soft brush on the day of observation,
Spores from spore print two days later.

Proposed Names

92% (2)
Eye3 Eyes3
Recognized by sight
Used references: (1) http://www.mycokey.com/...
(2) D. Arora, Mushrooms Demystified, Ten Speed Press, Berkeley (1986), p 674
(3) http://pagesperso-orange.fr/...
(4) S. Buczacki, Collins Fungi Guide, Collins (2012), p 594.
(5) J. Breitenbach, F. Kraenzlin, Eds., Fungi of Switzerland, Vol.1. Verlag Mykologia (1984), p 83.
(6) http://linnet.geog.ubc.ca/... Flora BC)
(7) http://www.mycoquebec.org/...
(8) http://de.wikipedia.org/wiki/Guepiniopsis_buccina 10-16/5-7
(9) J.P. Ellis, Fungi without Gills (Hymenomycetes and Gasteromycetes): An identification handbook (1990)
Based on microscopic features: Spores smooth. Dimensions when collected by rubbing fertile surface of the largest, apparently mature fruit body by a soft wet brush: 13.5 (SD = 1.0) x 5.1 (SD = 0.4) μ, Q = 2.7 (SD = 0.23), n = 30. Spores taken from spore print two days later: 14.2 (SD = 1.1) x 6.0 (SD = 0.2) μ, Q = 2.37 (SD = 0.2), n = 28.Olympus CH20, NEA 100x/1.25, magnification 1.000 x, oil, (and NEA 40x/0.65, magnification 400x other pictures), in water. AmScope MA500 digital camera.
Based on chemical features: Taste and smell indistinctive.

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Eye3 = Observer’s choice
Eyes3 = Current consensus


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Created: 2013-12-18 03:53:34 CST (+0800)
Last modified: 2013-12-18 12:14:24 CST (+0800)
Viewed: 141 times, last viewed: 2018-11-05 08:42:28 CST (+0800)
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