Observation 194390: Flammulina velutipes (Curtis) Singer
When: 2014-11-28
(46.3607° 13.7091° 550m)

Notes: Code: Bot_851/2014_DSC4924

Habitat: at the bottom of alpine valley, sawmill depot, next to the main road, flat terrain, full sun, humid place next to a river, exposed to direct rain, average precipitations ~ 3.000 mm/year, average temperature 7 – 9 deg C, elevation 550 m (1.800 feet), alpine phytogeographical region.

Substratum: a big log of Juglans regia lying on ground in a pile of timber.

Place: Lower Trenta valley, between villages Soča and Trenta, sawmill depo Otokar, Trenta 4, East Julian Alps, Posočje, Slovenia EC

Comment: Flammulina velutipes grows as a saprobiont on wood of wide range of broadleaf trees, vast majority of them on Salix sp. and Fagus sylvatica. Fungi I found grew on Juglans regia, which is very seldom recorded. Only four of about thousand observations analyzed in Ref.:2. state Juglans regia as substratum. Taxonomy of this species is complex. Several taxa on f. and var. levels have been described. But, authors do not agree on them and Index Fungorum does not recognize them as valid names. The situation is well illustrated by the fact that there exist about 40 IF synonyms using six genera names. Also large differences in spore dimensions one can find in literature (see Fig. 2M) somehow confirm this.

Pilei photographed grew in several clusters, more than 80 pilei altogether were present; pileus diameter 1.8 – 4.5 cm and height 1.2 – 1.8 cm, upper surface very slimy, stipe diameter 3 – 4 mm above and 3.5 – 7 mm at the base, hollow when mature, tough, fairly fibrous and often flattened or twisted; SP abundant white, oac909.

Nikon D700/Nikkor Micro 105mm/f2.8

Proposed Names

85% (1)
Eye3 Eyes3
Recognized by sight: Colors and winter time.
Used references: (1) C. Bas, Flammulina in Western Europe, Persoonia (1983) 12 (1), pp 51-66 (cited in Ref.:2.)
(2) G.J. Krieglsteiner (Hrsg.), Die Grosspilze Baden-Württembergs, Band 3., Ulmer (2001), p 245.
(3) M. Bon, Parey’s Buch der Pilze, Kosmos (2005), p 170.
(4) R. M. Dähncke, 1200 Pilze in Farbfotos, AT Verlag (2009), p 389.
(5) S. Buczacki, Collins Fungi Guide, Collins (2012), p 192.
(6) R. Lueder, Grundkurs Pilzbestimmung, Quelle & Meyer (2008), p 388.
(7) http://trace.tennessee.edu/...
Based on microscopic features: Spores dimensions: 7,0 [7,7 ; 8] 8,7 × 4,2 [4,6 ; 4,8] 5,2 microns; Q = 1,5 [1,6 ; 1,7] 1,8; N = 33; C = 95%; Me = 7,9 × 4,7 microns; Qe = 1,7. Olympus CH20, NEA 100x/1.25, magnification 1.000 x, oil, in water, Congo red. AmScope MA500 digital camera.
Based on chemical features: Taste mild slightly on soap; smell very mild but distinct, on bleach?

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Eye3 = Observer’s choice
Eyes3 = Current consensus


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Created: 2014-12-22 15:52:02 CST (-0500)
Last modified: 2014-12-22 16:21:38 CST (-0500)
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