Observation 175366: Tapinella atrotomentosa (Batsch) Šutara

Code: Bot_828/2014_DSC3095

Habitat: mixed wood, Picea abies and Fagus sylvatica dominant; moderately southeast inclined foot of a mountain; rather dry place, in shade; shallow, skeletal, calcareous ground, old overgrown scree slope; partly protected from direct rain by tree canopies, average precipitations ~ 3.000 mm/year, average temperature 7-9 deg C, elevation 630 m (2.070 feet), alpine phytogeographical region.

Substratum: Picea abies stump in its final stage of disintegration.

Place: Lower Trenta valley, between villages Soča and Trenta, right bank of river Soča, above ‘Na melu’ place, East Julian Alps, Posočje, Slovenia EC

Comments: Tapinella atrotomentosa is a cosmopolitan, relatively common species. Yet it is not frequently seen in my region. It is a striking, interesting mushroom with its large, mostly dark brown, velvety pileus and primarily by its thick, almost black and coarsely velvety stipe. Latin word ‘atrotomentosus’ translates to “black-haired”. Nothing similar exists in our woods, therefore determination isn’t difficult. In this observation it was growing solitary; pileus dimensions 16 × 12 cm, stipe 5 cm long and 3 cm thick; flesh thick, brittle; SP light-ocher, oac814.

Nikon D700/Nikkor Micro 105mm/f2.8

Proposed Names

85% (1)
Eye3 Eyes3
Recognized by sight: Bracket with velvety appearance.
Used references: (1) R.M. Daehncke, 1200 Pilze in Farbfotos, AT Verlag (2009), p 104.
(2) M. Bon, Parey’s Buch der Pilze, Kosmos (2005), p 50.
(3) S. Buczacki, Collins Fungi Guide, Collins (2012), p 420.
(4) R. Phillips, Mushrooms, Macmillan (2006), p 208.
(5) D. Arora, Mushrooms Demystified, Ten Speed Press, Berkeley (1986), p 478.
(6) G.J. Krieglsteiner (Hrsg.), Die Grosspilze Baden-Württembergs, Band 2., Ulmer (2000), p 346.
Based on microscopic features:
Spores smooth. Dimensions: 4,4 [5,6 ; 6] 7,2 × 3,3 [3,7 ; 3,8] 4,2 microns, Q = 1,3 [1,5 ; 1,6] 1,7; N = 42; C = 95%, Me = 5,8 × 3,8 microns; Qe = 1,5. Olympus CH20, NEA 100x/1.25, magnification 1.000 x, oil, in water. AmScope MA500 digital camera.
Based on chemical features: Taste mildly mushroomy; smell mild, mushroomy, slightly on a perfume.

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Eye3 = Observer’s choice
Eyes3 = Current consensus


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Created: 2014-08-26 09:54:32 CDT (-0400)
Last modified: 2014-08-26 09:54:37 CDT (-0400)
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