Suillus Adans.
A number of species are known in Europe. Fruitbody boletoid without or with partial veil, and then leaving a ring on the stipe. Cap in most species more or less viscid. Stipe solid.
Suillus plorans (Rolland) Kuntze
Description
Cap up to 10 cm, at first hemispherical then expanding to convex, dark ochraceous to light or dark brown, dry or viscid. Stipe, cylindrical or slightly swollen at the base, more or less concolorous with the cap, but mostly paler, covered throughout with brownish granuls. Flesh yellowish to yellow, unchanging when exposed to air. Tubes dirty mustard coloured to rusty. Pores small, rounded, mustard coloured. Smell not distinctive. Taste not distinctive. Spores 9–11.5 × 4–5 μm.
Habitat. Alpine coniferous forests, but also under planted trees in parks and gardens, mycorrhizal with five-needle pines (Pinus cembra, P. sibirica, P. wallichiana).
Distribution. In Europe known mostly from the high mountains, where the mycorrhizal trees are present. Not yet seen in the Balkans, but it might be well present there under Macedonian pine (Pinus mugo).
Similarity. Might be probably confused with Suillus variegatus which has paler cap, stem without granular dots, and flesh that blues in the cap. In addition it grows under wider range of pines.
Photographs
Fruitbodies of Suillus plorans. Note the colours, somewhat darker than in Suillus variegatus. (photo G. Konstantinidis)
Fruitbodies of Suillus plorans. (photo G. Konstantinidis)
Fruitbodies of Suillus plorans. (photo G. Konstantinidis)
Fruitbodies of Suillus plorans. (photo G. Konstantinidis)
Suillus plorans - detail of the stipe surface. (photo G. Konstantinidis)
Important literature
Alessio, C.L. 1985. Boletus Dill. ex L. (sensu lato). – In: Fungi Europaei. Vol. 2. Pp. 1–705. Libreria editrice Biella Giovanna, Saronno.
Breitenbach J. & Kränzlin F. 1991. Pilze der Schweiz. Bd. 3(1). Röhrlinge und Blätterpilze. Verlag Mykologia, Luzern.
Engel, H., Dermek, A., Klofac, W., Ludwig, E. & Brückner, T. 1996. Schmier – und Filzröhrlinge s. l. in Europa. Die Gattungen Boletellus, Boletinus, Phylloporus, Suillus, Xerocomus. Verlag Heinz Engel, Weidhausen b. Coburg.
Estadès, A. & Lannoy, G. 2004. Les bolets européens. – Bulletin Mycologique et Botanique Dauphiné-Savoie 44(3): 3–79.
Galli, R. 1998. I Boleti. Atlante pratico-monographico per la determinazione dei boleti. Edinatura, Milano.
Knudsen, H. & Vesterholt, J. [eds.]. 2008. Funga Nordica. Nordsvamp, Kopenhagen.
Lannoy, G. & Estadès, A. 2001. Les Bolets. Flore mycologique d’Europe. Documents Mycologiques Mémoire Hors série no. 6. Pp. 1–163. Association d’Écologie et de Mycologie, Lille.
Muñoz, J.A. 2005. Boletus s. l. – In: Fungi Europaei. Vol. 1. Pp. 1–951. Edizioni Candusso, Alassio.
Šutara, J., Mikšík, M. & Janda, V. 2009. Hřibovité houby. Čeled’ Boletaceae a rody Gyrodon, Gyroporus, Boletinus a Suillus. Academia, Praha.