Observation 82848: Melanoleuca polioleuca (Fr.) Kühner & Maire
When: 2011-11-10
(46.32971° 13.51965° )
No herbarium specimen

Notes: Code: Bot_574/2011_DSC1298

Habitat: Mixed wood side and grassland of a golf playground; flat terrain, relatively humid but sunny place, exposed to direct rain, average precipitations ~ 3.000 mm/year, average temperature 8-10 deg C, elevation 370 m (1.200 feet), alpine phytogeographical region.

Substratum: soil.

Place: Bovec basin, Golf playground west of Bovec, East Julian Alps, Posočje, Slovenia EC

Comments: There is a confusion about the names as well as spore dimension data in literature available to me. For example: Rodger mushrooms has Melanoleuca polioleuca as a synonym of Melanoleuca melaleuca. Index Fungorum as well as Slovenian checklist of fungi have both names as valid names of two species. I keep with data in Ref.(1).

Growing solitary and in large but sparse groups, many fruit bodies. Pileus diameter up to 9 cm (3,5 inch), up to 10 cm (4 inch) tall. Cap glabrous, dark gray-brown (oac868), gills whitish-beige (oac850-851), stipe concolorous with the cap, darker toward the base. SP whitish with a slight pink tint (oac857). Some mycelium present at the base of the stipe.

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

Proposed Names

57% (1)
Eye3 Eyes3
Recognized by sight
Used references: (1) G.J.Krieglsteiner (Hrsg.), Die Grosspilze Bade-Württembergs, Band 3, Ulmer (2001), p 375.
(2) R.Phillips, Mushrooms, Macmillan (2006), p 99.
(3) M.Noordeloos et all, Flora Agaricina Neerlandica #4, Balcema (1999), p164.
(4) A.Poler, ed., Seznam gliv Slovenije (in Slovene), 2nd Ed., Assoc. of Mycol.Soc. of Slovenia (1998), p 48.
Based on microscopic features: Spores ornamented. Dimensions: 8.1 (SD = 0.5) x 5.1 (SD = 0.3) micr., Q = 1.59 (SD = 0.08), n = 30. Many fusiform and lageniform pleurocystidia present as well as such with crystals at their tips (this excludes M. melaleuca). Motic B2-211A, magnification 1.000 x, oil, in water. Congo red.
Based on chemical features: Taste slightly unpleasant, smell indistinctive.

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Created: 2011-11-20 10:11:31 HST (-1000)
Last modified: 2011-11-20 10:18:06 HST (-1000)
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