Image of Suillus bovinus (L.) Roussel 1796

Description:

Slo.: kravnjaa, prona lupljivka - Habitat: Grassland, former pasture overgrown with scattered Picea abies and some Larix decidua, flat sandy calcareous ground, well settled alluvial deposits, fairly sunny, exposed to direct rain, average temperature 6-8 deg C, average precipitations ~3.000 mm/year, elevation 960 m (3.150 feet), alpine phytogeographical region. - Substratum: mossy soil. - Comment 1: Uncertain determination. Surprising, but definitely no Pinus sp. around, but a few young Picea abies at 3-5 m (10 - 16 feet) away and a few large Larix decidua at about 10+ m (30+ feet) away. According to literature it should be mycorrhiza with Pinus sp. Unusually strongly decurent pores, cuticle sticky, 5 - 6 specimens in a loose group. Spore print faint, ocker(?). Spore dimensions: 10.0 (SD=0.7) x 4.3 (SD=0.2) micr, n=20. Motic B1-211A, magnification 1.000 x, oil, in water. - Comment 2: Additional information has been gathered through Mr. Gregor Podgornik, NAC (Natural History Center) Tolmin, Slovenia and his colleagues Christopher Hahn, UNI Muenchen, dr. Armin Mesi, Institute Rudjer Bokovi, Zagreb and dr. Alfredo Vizzini, UNI Torino. The referees agree that this is not a normal S. bovinus, but probably one with deformed hymenophore apparently by a virus, looking like a mix between S. tridentinus and S. bovinus. - Ref.: (1) G. Pace, Vse o gobah (in Slovene), Mladinska Knjiga (1997), p 269. (2) J.Grom, Nae gobe (in Slovene), epna Knjiga, (1981), p 25. (3) M.Bon, Pareys Buch der Pilze, Kosmos (2005), p 48. (4) R.M.Daehncke, 1200 Pilze in Farbfotos, AT Verlag (2009), p 34. (5) R.Lueder, Grundkurs Pilzbestimmung, Quelle & Mayer (2008), p 368.