Rugiboletus extremiorientalis
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Rugiboletus extremiorientalis in Japan |
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| Scientific name | ||||||||||||
| Rugiboletus extremiorientalis | ||||||||||||
| ( Lj.N. Vassiljeva ) G. Wu & Zhu L. Yang |
Rugiboletus extremiorientalis is a type of mushroom from the family of the thick boletus relatives (Boletaceae).
features
Macroscopic features
The hat is hemispherical to broadly arched, with a more or less felted surface and reaches a diameter between 8 and 11 centimeters. It has a brownish yellow, yellowish brown, light brown to brown color, and is often sticky when wet. The edge is often curved, usually wrinkled when young and cracked with age. The flesh is pale yellow to light yellow, about two inches thick, and won't discolour if injured.
The hymenophore , i.e. the tubular part of the hat, is attached (adnex). It is colored the same as the tubes, namely grayish yellow. These are small, round, 2.5 millimeters in diameter and 1 to 2.58 inches long. They also do not change color when injured. The 9 centimeter long and 2 centimeter thick handle is shaped like a walnut. It is light yellow to canary yellow in color and speckled with brownish-yellow scales of the same color or darker ones. Sometimes it has a grain in the lower part.
The flesh of the stem is pale yellow to light yellow mixed with a brown tint. Macrochemical reactions are not observed.
Microscopic features
The basidia are 21–36 × 9–14 micrometers in size, club-like to broad club-like, mostly four-pore, but sometimes one to two-pore. The spores have a more or less spindle-shaped, unequal-sided shape, are 11-13 × 4-5 micrometers in size, light yellow, smooth and do not stain with iodine ( inamyloid ). The hyphae of the hat trama are cylindrical and 4 to 8 micrometers wide. The thin-walled cheilocystids are spindle-shaped and bulbous to spindle-shaped and spiky or club-shaped. They grow to be 22–35 × 5–8 micrometers in size. The pleurocystids are 20–60 × 7–13 micrometers in size, are spindle-shaped and bulbous to bulbous and thin-walled. The top layer of the hat is an ixotrichoderm with brown to yellowish brown, branched hyphae 3 to 6 micrometers wide . The flesh of the stalk consists of slightly thick-walled, parallel hyphae that are 5 to 10 micrometers wide. There are no buckles .
Rugiboletus extremiorientalis
Rugiboletus extremiorientalis from below
Ecology and phenology
Rugiboletus extremiorientalis grows individually or gregariously in mixed forests with different pines such as Pinus yunnanensis and Pinus densiflora and beech plants such as oak , pseudo-chestnut and lithocarpus species or in pure deciduous forests from different beech plants.
distribution
Rugiboletus extremiorientalis is known to date from southwest, central and northeastern China, from far eastern Russia, from Japan, Korea, Nepal and Thailand.
use
Like all relatives, the species is edible. It is sold in the wild in China, for example at markets in Kunming .
Systematics
Rugiboletus extremiorientalis was first described in 1950 by the Soviet mycologist Ljubov Nikolaevna Vassiljeva as Krombholzia extremiorientalis . Rolf Singer placed the species in the genus of Raufußröhrlinge ( Leccinum ). In 2014, the Chinese mycologists Gang Wu and Zhu L. Yang established the new genus Rugiboletus .
swell
Individual evidence
- ↑ a b c d e f Gang Wu, Kuan Zhao, Yan-Chun Li, Nian-Kai Zeng, Bang Feng, Roy E. Halling, Zhu L. Yang: Four new genera of the fungal family Boletaceae . In: Fungal Diversity . tape 81 , no. 1 , November 2016, p. 1-24 , doi : 10.1007 / s13225-015-0322-0 ( researchgate.net ).
- ↑ Nicola Sitta & Paolo Davoli: Edible Ectomycorrhizal Mushrooms: International Markets and Regulations. In: Alessandra Zambonelli & Gregory M Bonito (editors): Edible Ectomycorrhizal Mushrooms. Current Knowledge and Future Prospects. (Soil Biology series vol. 34). Springer, 2013. ISBN 978-1-299-33541-7
- ↑ S.-Z. Fu, Q.-B. Wang, Y.-J. Yao (2006): An annotated checklist of Leccinum in China Mycotaxon 96: 47-50.
- ↑ MycoBank: Rugiboletus extremiorientalis . Retrieved November 11, 2017 .
