Pink-brown blotch
| Pink-brown blotch | ||||||||||||
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| Russula cremeoavellanea | ||||||||||||
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The Pink-Brown Bluebird or Pale Red Bluebird ( Russula cremeoavellanea ) is a fungus from the family of the Bluebird relatives . The medium-sized and very rare Täubling is initially creamy-yellow to almost lemon-yellow in color and tinged with pink to pinkish-brown in places. Later it turns almost hazel brown. The mild-tasting Täubling is a typical birch companion.
features
Macroscopic features
The hat is 4–9 (–10) cm wide, initially arched, but later more or less depressed in the middle. The hat is yellowish to cream-colored and in places more or less tinged with pink, fox-red or orange. But there are also completely orange-colored shapes. With age, the hat turns more creamy ocher and finally almost hazel brown. Depending on the weather, the smooth hat skin is sticky glossy to matt and peelable almost to the middle. The edge is blunt and grooved with bumps with age.
The lamellae are fairly close at first and then more distant and are bifurcated or veined at the base. They are quite broad and blunt and are initially whitish, then cream-colored and ocher-yellow when ripe. The spore powder is also colored intensely yellow (> spore powder color IVb (cd) according to Romagnesi ).
The soft stem is 3–6 (–8) cm long and 1–2 (–3) cm wide. It is white, wrinkled and can turn grayish brown. The white flesh is quite thick, brittle and has a slightly gray-yellowish tone. It tastes mild, a bit like hazelnut and sometimes smells slightly fruity. The smell can also be completely absent. The flesh turns a pale gray-pink color with iron sulfate and reacts very violently with guaiac .
Microscopic features
The more or less prickly spores are (7) 8–9 (–9.5) µm long and 6–7.5 (–8) µm wide. The warts are usually isolated, but sometimes they are also partially connected, but not or hardly networked. The pleurocystids measure 60-85 × 8-12 µm. They are not very characteristic, mostly more or less blunt and partly appended or spindle-shaped.
The 2-3 (5) µm wide hyphae end cells of the cap skin are very variable. They are usually slender, often narrowed in the shape of a nipple or almost constricted or head-shaped at the elongated tip. The cylindrical Pileocystiden are (3) 5-7 (8) µm wide and 1-3 (5) -fold septate. They can be stained slightly with sulfovanillin . The acid resistance of their incrustation is also more or less developed. Sometimes some hyphae end cells are stained here or there, as is typical of primordial hyphae.
Species delimitation
The interchangeable yolk blubber may look very similar, but with age it has a distinctive apricot odor and does not turn brown. The similar, shiny yellow yolk bling has a typical vinegar smell with age. The sun and the gall bladder still have a certain similarity, but they are both easy to distinguish by their pungent taste.
Ecology and diffusion
The pink-brown deafblings are, like all deafblings, a mycorrhizal fungus that primarily forms a partnership with birch trees , but also with hornbeams . The Täubling can be found in deciduous forests, especially in mixed oak forests. In July, the fruiting bodies appear particularly abundant and usually in droves at their location.
The Täubling is a very rare, purely European species that has its main distribution in Northern Europe.
In Germany, the very rare Täubling occurs in Bavaria and Baden-Württemberg. In Austria there is evidence from Vorarlberg and Burgenland.
Systematics
Inquiry systematics
Both Bon and Romagnesi put the pink-brown blubber in the Laetinae subsection , which is below the Russulinae section for Bon and below the Coccinae section for Romagnesi . The representatives of the subsection are mostly medium-sized species, whose hat is usually brightly reddish, orange or brick-red in color, but can sometimes be more yellowish-cream-colored. The meat tastes mild and has no characteristic odor. The spore powder is yellow.
meaning
As a mild-tasting blubber, the pink-brown blubber is in principle edible, but as an extremely rare species it should be spared.
literature
- Russula cremeoavellanea. In: Mycobank (Fungal Nomenclature and Species Databank) . International Mycological Association, accessed February 7, 2014 .
- H. Romagnesi: Russula cremeoavellanea. Les Russules d'Europe et d'Afrique du Nord (1967). In: mycobank.org The Fungal website. Retrieved August 8, 2011 (French).
- Russula consobrina. In: Partial Russula species database of the CBS-KNAW Fungal Biodiversity Center . Retrieved on February 7, 2014 (English, spore drawing and tabular listing of the macro- and microscopic features (based on H. Romagnesis "Les Russules d'Europe et d'Afrique du Nord" )).
- Alfred Einhellinger: The genus Russula in Bavaria . In: Bibliotheca Mycologica . 3. Edition. tape 112 . Berlin / Stuttgart 1994, ISBN 978-3-443-59013-0 , pp. 55 .
Individual evidence
- ↑ a b Russula cremeoavellanea. (PDF (1.4 MB)) Monographic Key to European Russulas (1988). In: The Russulales website w3.uwyo.edu. P. 81 , archived from the original on July 28, 2010 ; Retrieved June 20, 2011 (English, translation by M. Bon's Russula key).
- ↑ Russula cremeoavellanea. (DOC) Russulas. Micologia.biz Web de micología Europea, p. 160 , accessed June 20, 2011 (Spanish).
- ↑ a b Russula cremeoavellanea. (No longer available online.) In: Russulales News / mtsn.tn.it. Formerly in the original ; Retrieved June 20, 2011 . ( Page no longer available , search in web archives ) Info: The link was automatically marked as defective. Please check the link according to the instructions and then remove this notice.
- ^ W. Demon, A. Hausknecht, I. Krisai-Greilhuber: Database of Austria's mushrooms. In: austria.mykodata.net. Austrian Mycological Society, 2009, accessed September 2, 2011 .
- ↑ Basidiomycota Checklist-Online - Russula cremeoavellanea. In: basidiochecklist.info. Retrieved September 10, 2012 .
- ↑ Karel Tejkal: www.myko.cz/myko-atlas - Russula cremeoavellanea. In: www.myko.cz. Retrieved February 6, 2016 (cz).
- ↑ Pertti Salo, Tuomo Niemelä, Ulla Nummela-Salo: SY769 Suomen helttasienten ja tattien ekologia, levinneisyys ja uhanalaisuus . (Finnish lamellar and tube mushrooms: ecology, distribution and threat status). Ed .: Esteri Ohenoja. 2005, ISBN 952-11-1997-7 (Finnish, ymparisto.fi [PDF]).
- ↑ Worldwide distribution of Russula cremeoavellanea. In: GBIF Portal / data.gbif.org. Retrieved August 18, 2011 .
- ↑ Nahuby.sk - Atlas hub - Russula cremeoavellanea. (No longer available online.) In: nahuby.sk. Formerly in the original ; Retrieved September 10, 2012 . ( Page no longer available , search in web archives ) Info: The link was automatically marked as defective. Please check the link according to the instructions and then remove this notice.
- ↑ Distribution atlas of mushrooms in Switzerland. (No longer available online.) In: wsl.ch. Federal Research Institute for Forests, Snow and Landscape WSL, archived from the original on October 15, 2012 ; Retrieved September 10, 2012 . Info: The archive link was inserted automatically and has not yet been checked. Please check the original and archive link according to the instructions and then remove this notice.
- ^ Red list data from Russula cremeoavellanea. In: s4ads.com. Retrieved August 18, 2011 .
Web links
- Synonyms of Russula cremeoavellanea. In: speciesfungorum.org. Index Fungorum, accessed June 20, 2011 .
- Russula cremeoavellanea. In: Russulales News . Bart Buyck, accessed February 7, 2014 (English, photo and original Latin diagnosis).
- Russula cremeoavellanea. In: pilzseite.de. Retrieved August 7, 2011 (photos).
