Ringed stone pine bolet
| Ringed stone pine bolet | ||||||||||||
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Suillus sibiricus ( Suillus sibiricus subsp. Helveticus ) |
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| Suillus sibiricus subsp. helveticus | ||||||||||||
| Singer |
The ringed stone pine bolet ( Suillus sibiricus subsp. Helveticus ), also known as the Helvetic granule bolete , is a fungus from the family of the smeared boletus . It grows in symbiosis ( mycorrhiza ) especially with stone pine , often together with the related stone pine bolet .
features
Macroscopic features
The hat of the ringed stone pine tube has a diameter of four to eight or a maximum of ten centimeters. It is initially hemispherical, later cushion-shaped to expanded and bluntly hunched. Sometimes the edge is dented on the side. The surface is smooth. The edge of the hat is initially rolled up and hung with conspicuous remains of white velum . The color ranges from pale to strong yellow to yellow-brown with pale brown, brown or red-brown spots of various sizes.
The tubes are up to ten centimeters long. They are attached to the stem or sometimes run down a little. They are dirty yellow, later pale ocher to brownish-yellow and finally brownish-olive in color. The pores have an oblong, angular shape, and they are often over a millimeter long. Especially towards the edge, they are clearly aligned radially and run down to the base of the ring. The pores are first pale yellow, then pale ocher to ocher in color. They first change color to reddish-brown, then brownish-olive on pressure. Often there are guttation droplets on the pores , which leave wine-red to dark brown spots when they dry out.
The stem is about three to eight inches long and one to two and a half inches wide. It is full-bodied, sub-cylindrically shaped and sometimes somewhat thickened at the base, more rarely towards the tip of the stem. Sometimes it is also tapered towards the base. The color ranges from whitish yellow to pale sulfur yellow, brownish towards the base. The white glandular points, which are located along the entire length of the stem, secrete a fluid that later turns the stem wine-red, brown-red to deep brown. The woolly, white velum is not smeary and, after the hat has been shown, is formed as a volatile ring. The basal mycelium is rust-colored.
The meat is firm at first, but later becomes soft. In the hat it is straw yellow to pale sulfur yellow. When injured, it sometimes turns reddish-brown. It has a slightly sour taste and a faint odor. With ammonia water it only turns pink in the hat.
Microscopic features
The spores measure 9.0 to 12 by 3.8 to 4.5 (5.0) micrometers. They are elliptical to spindle-shaped, smooth and straw-colored to pale yellowish-ocher. The basidia are 25 to 35 by 6 to 10 micrometers in size, club-shaped and four-pore. The cheilo cystidia are 75, sometimes 90 micrometers long and 7 to 12 micrometers wide. They are cylindrical, club-like or lanceolate in shape and tufted. They are hyaline when young , later encrusted brown and dark brown.
The top layer of the hat consists of up to 5.5 micrometers wide hyphae of an ocher-brownish color. The stalk cover layer consists of tufted caulocystids, which are shaped like the cheilocystids. In between there are hyaline elements that can also be formed as fertile basidia.
Species delimitation
The ringed stone pine tube is characterized by a brown or wine-brown spotted hat, the strongly pronounced velum, the glandular points on the stem, the large pores and the mycorrhiza with five-needle pine species. The subsp. sibiricus has darker colors. It is only known from Russia ( Altai ), Tanzania and the USA ( Michigan ).
ecology
The ringed stone pine bolet is a mycorrhizal fungus that primarily forms a symbiosis with the stone pine. It can also be found under Weymouth and Rumelian pine . In addition to the natural occurrences of its mycorrhizal partners, the fungus also grows in plantations and avenues. It can often be found at the edges of forest roads and clear areas where it can also grow in the grass. The fruiting bodies appear from July to September.
distribution
The ringed stone pine tubule can be found in Europe in the area of the stone pine at heights of 1700 to 2300 meters . Occasionally it also grows in deeper regions. It occurs above all in the area of the Alps in Germany, France, Italy, Austria and Switzerland. It can also be found in Slovakia and Macedonia. The subsp. Occurs especially in the Central Asian mountain regions. sibiricus on.
meaning
The ringed stone pine bolet is edible.
swell
literature
- Heinz Engel, Aurel Dermek with watercolors by Wolfgang Klofac, Erhard Ludwig, (Thomas Brückner): smear and felt tubers s. l. in Europe . The genera: Boletellus , Boletinus , Phylloporus , Suillus , Xerocomus . Verlag H. Engel, Weidhausen near Coburg 1996, ISBN 978-3-926470-08-9 (268 pages plus 58 color plates: watercolors, micro and macro photos, SEM photos).
Individual evidence
- ^ German Josef Krieglsteiner (Ed.), Andreas Gminder , Wulfard Winterhoff: Die Großpilze Baden-Württemberg . Volume 2: Stand mushrooms: inguinal, club, coral and stubble mushrooms, belly mushrooms, boletus and deaf mushrooms. Ulmer, Stuttgart 2000, ISBN 3-8001-3531-0 , p. 302.
