Neoboletus
| Neoboletus | ||||||||||||
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Flaky-stalked witch bolete ( Neoboletus erythropus ) |
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| Scientific name | ||||||||||||
| Neoboletus | ||||||||||||
| Gelardi , Vizzini & Simonini |
Neoboletus is a genus of mushrooms from the family of the Boletaceae relatives .
The type species is the flaky-stemmed witch-bolete ( Neoboletus erythropus ).
features
Macroscopic features
Except for Neoboletus thibetanus ( Syn. Gastroboletus thibetanus ), whose fruiting bodies have a mushroom-like habit, the fruiting bodies are divided into a hat and a stem and have a tubular layer. The cushion-shaped to flattened hat is chestnut brown, old brown, olive-brown, reddish-brown to blood-red, ocher or yellow, opaque. The surface is dry and velvety to almost felt-like. The hymenophore is poroid and bulged on the stem. The tubes have a yellow to olive-brown color, the pores or tube mouths are reddish-orange, blood-red to red-brown, yellowish-orange or yellow. The spore powder leaves an olive-brown imprint. The central, solid stem is decorated entirely or at least in the upper part with conspicuous reddish to reddish-brown or yellow dots, sometimes reticulated. The base is either curly or not. The firm, pale yellow to light yellow flesh quickly turns dark blue on pressure or when injured. It tastes mild.
Microscopic features
The spores are smooth-walled and almost spindle-shaped, elliptical to elliptical-spindle-shaped. Sterile elements occur both on the tube surface ( pleurocystids ), on the tube mouths ( cheilocystids ) and on the stem surface ( caulocystids ). The hat cover layer ( Pileipellis ) is an almost parallel or interwoven Trichoderm with a transition to a cutis. The different bilateral hymenophoraltrama corresponds to the boletus type. The lateral stalk layer is also boletoid and lies under a spore-producing fruit layer ( caulohymenium ). Buckle connections on the partitions ( septa ) of the fungal threads ( hyphae ) are missing. The stick meat shows no color reaction ( inamyloid ) when it comes into contact with an iodine reagent .
ecology
Neoboletus species form ectomycorrhiza with various deciduous and coniferous trees.
species
The genus Neoboletus comprises 9 species worldwide, 2 of which occur or are to be expected in Europe ( Neoboletus erythropus and Neoboletus xanthopus ).
| Neoboletus worldwide |
Flaky-stalked witch bolete
Neoboletus erythropus
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Origin of name
The word element neo- is derived from the Greek word neós "new" and refers to the morphological similarities of the new genus with the other thick tubule-like genera.
Individual evidence
- ↑ Christoph Hahn: On the taxonomy and history of the genus Boletus s. l. In: Mycologia Bavarica . tape 16 , 2015, p. 13-45 .
- ↑ a b 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 . February 2015, ISSN 1560-2745 , doi : 10.1007 / s13225-015-0322-0 .
- ↑ a b c d Alfredo Vizzini: Index Fungorum no.192. October 17, 2014, accessed on January 21, 2015 .
- ↑ Alexander Urban, Wolfgang Klofac: Index Fungorum no.206. December 15, 2014, accessed on January 28, 2015 .
- ↑ Wolfgang Klofac: Index Fungorum no.228. March 9, 2015, accessed on April 26, 2015 .
- ^ Alfredo Vizzini: Index Fungorum no.300. March 30, 2016, accessed on May 11, 2016 .
- ↑ Helmut Genaust: Etymological dictionary of botanical plant names. 3rd, completely revised and expanded edition. Nikol, Hamburg 2005, ISBN 3-937872-16-7 , p. 414 (reprint from 1996).
