Code: Bot_465/2010_IMG2787

Habitat: A widening of a dirt forest road lightly overgrown with grasses and other green plants, semi ruderal place of former forestry activities; mountain slope, south aspect; relatively warm place; locally flat, calcareous ground with a lot of half buried and buried Picea abies and Fagus sylvatica thrown away wood pieces; sunny, open place, exposed to direct rain; average precipitations ~ 3.000 mm/year, average temperature 6-7 deg C, elevation 870 m (2.850 feet), alpine phytogeographical region.

Substratum: sand and gravel with buried pieces of wood; most probably on Picea abies.

Place: South slopes of Mt. Kanin mountain group west of Bovec, lower Gozdec place, next to the dirt road from Bovec to Cable car Kanin station B Čela, East Julian Alps, Posočje, Slovenia EC.

Comments: This find shows rather old fruitbodies being unusual regarding their habitat. Several tens of mushrooms were growing virtually on sandy and stony flat surface of a dirt road side. However, closer inspection showed that the ground is full of buried wood, most probably of Picea abies. Mushrooms were growing in several dense, tufted groups of several fruit bodies; pileus diameter about 5 (7) cm; taste unpleasant, smell faint, indistinctive; SP abundant, whitish.

Canon G11, 6.1-30mm/f2.8-4.5


Proposed Names

73% (3)
Used references: (1) G.J. Krieglsteiner (Hrsg.), Die Grosspilze Baden-Württembergs, Band 4., Ulmer (2001), p 124.
(2) S. Buczacki, Collins Fungi Guide, Collins (2012), p 190.
(3) R. Phillips, Mushrooms, Macmillan (2006), p 101.
(4) J. Breitenbach, F. Kraenzlin, Eds., Fungi of Switzerland, Vol.4., Verlag Mykologia (2000), p 138.
(5) R.M. Daehncke, 1200 Pilze in Farbfotos, AT Verlag (2009), p 68.
Based on microscopic features: Spores smooth. Dimensions: 7.3 [8.4 ; 8.9] 10 × 5.5 [6.2 ; 6.5] 7.2 microns; Q = 1.1 [1.3 ; 1.4] 1.6; N = 40; C = 95%; Me = 8.6 × 6.4 microns; Qe = 1.4. Motic B2-211A, NEA 100x/1.25, magnification 1.000 x, oil, in water, in vivo. AmScope MA500 digital camera.
Based on chemical features: Taste unpleasant, smell faint, indistinctive.
31% (2)
Recognized by sight

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Add Comment
By: Image Sharer (image sharer)
2018-06-27 08:23:02 EDT (-0400)

Hi Amadej ~

This wasn’t a determination based on distinguishing between two species. Rather, it was a follow-up to learning that Armillaria ostoyea had been deprecated on Mycobank by Armillaria solidipes, arguably the largest, living organism on planet Earth. However, I did just learn tonight that this may not live up to full genomic taxonomy as seen in one of the links below.

NOTE: Mycobank is currently offline.

In regard to your consideration as a distinguishing species, you may, in fact, be right. I just read this as a result of your commentary:

I have no doubt that it is better for neither of us to be “right” in this exact moment, and instead, we should encourage full genome DNA sequencing for all Armillaria species until conclusive evidence is presented and cannot be denied.

I fully realize the value and importance in honoring mycologists from different regions, nations, and pseudo-nations. Yet, our planet is not so large. In fact, it is literally a small planet. The idea – the very notion – that one species is specific to only one spectrum of coordinates on our planet, is a bit too limiting for me and others. I have personally travelled a fair amount, and I can tell you that many, many species thrive not only in multiple nations, but on multiple continents.

Cheers To Slovenia,
Image Sharer

arguments, arguments ……
By: amadej trnkoczy (amadej)
2018-06-27 06:05:36 EDT (-0400)

Dear Image Sharer,

Thank you four your interest in my observation MO 227013: Armillaria ostoyae. Unfortunately, I have to disagree with you, better: disagree with the method you applied in changing the name of the shown specimens.

Namely, Armillaria solidipes has not been found yet in Slovenia. None of Slovenian most relevant references lists this species for my country (- S. Šerod et all (eds.), Operativni Seznam Gliv Slovenije (Operational List of Fungi of Slovenia), Association of Mycol. Soc. of Slovenia (2013); – A. Poler (ed.), Seznam gliv Slovenije (Checklist of Fungi of Slovenia), 2nd Ed., Assoc. of Mycol. Soc. of Slovenia (1998); – N. Ogris (ed), Boletus informaticus, Slovenian Forestry Institute, (accessed June 27. 2018)). Hence I have doubts in your determination.

Of cause, it is always possible that I unconsciously photographed a new species for Slovenia (‘leg.’), and you are ‘det.’ of its first find, no matter how low is the probability that this really happened. But in this case an in-depth comment with arguments for the new name would be required. Without it, without a single word of explanation why you proposed a different name does seem to me neither fruitful nor fair. Therefore, I would kindly ask you either to explain why my determination deserves your ‘as if’ vote and what are your morphological and other arguments for Armillaria solidipes, or to remove your ‘community vote’ on my determination (assuming it is yours? – unfortunately MO allows anonymous voting). In either case I will be really grateful to you.

All the best
Amadej Trnkoczy

Created: 2016-01-05 09:24:18 EST (-0500)
Last modified: 2018-06-27 09:10:48 EDT (-0400)
Viewed: 66 times, last viewed: 2020-09-01 16:59:43 EDT (-0400)
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