Both of them are Far Eastern ( lat. Rugibolétus extremiorientális ) - a type of mushroom belonging to the genus Rugiboletus of the Boletaceae family . Until the 2010s, it was included in the genus Obabok ( Leccinum ). Edible .
| Obabok Far Eastern | |||||||||||||||||||||||||
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Rugiboletus extremiorientalis ( Lj.N. Vassiljeva ) G. Wu & Zhu L. Yang , 2016 | |||||||||||||||||||||||||
Content
Description
The hat is at first almost spherical, with a sterile edge firmly pressed to the upper part of the leg, with a radially wrinkled surface, then it becomes cushion-shaped, fleshy, with a diameter of 14–22 cm. The skin is first brown, then buffy-red, cracking in dry weather.
The pulp is at first densely fleshy, in mature mushrooms it becomes friable, white, yellow over the tubules, it turns pink on the cut. The pulp of the legs is off-white. The taste is pleasant.
Leg up to 13 long and 2-3-3 cm thick, cylindrical, strong, solid. The surface is buffy, covered with longitudinal rows of buffy-brown scales.
The tubular layer with a recess near the stem, olive-yellow in mature fruit bodies.
Microscopic signs
Spores are fusiform-ellipsoidal, 11–13 × 4–4.5 μm in size, pale brown, contain a few drops of oil.
Gypsy peel caps are dull, standing, yellow in color, 7-8.5 microns thick.
Scales of the legs consist of bundles of hyphae, similar to hyphae of the skin of the hat, mixed with single cystid-shaped hyphae.
Ecology and distribution
It grows in oak trees , in Russia it is known in the south of Primorsky Krai .
Season August - September
Taxonomy
Rugiboletus extremiorientalis ( Lj.N. Vassiljeva ) G. Wu & Zhu L. Yang, Fungal Diversity 81: 15 (2016). - Krombholzia extremiorientalis Lj.N.Vassiljeva ,New syst. ness. rast. 6: 191 (1950).
Synonyms
- Krombholzia extremiorientalis Lj.N. Vassiljeva, 1950
- Krombholziella extremiorientalis (Lj.N. Vassiljeva) Šutara , 1982
- Leccinum extremiorientale (Lj.N. Vassiljeva) Singer , 2000
Literature
Vasilieva L. N. Agaric cap mushrooms of the Primorsky Territory. - L .: “Science”, 1973. - S. 283.