Purple thick foot

Purple thick foot
Purple thick foot ( Cortinarius traganus )
Systematics
Subclass : Agaricomycetidae Order : Mushroom-like (Agaricales) Family : Veil relatives (Cortinariaceae) Genre : Veils ( Cortinarius ) Subgenus : Thick feet ( sericeocybe ) Type : Purple thick foot
Scientific name
Cortinarius traganus
( Fr  .: Fr.) Fr.

The poisonous purple thick foot ( Cortinarius traganus ) is a type of mushroom from the family of the veil relatives (Cortinariaceae). The medium-sized fruit bodies have a lilac-colored, silky-shiny hat when young and a club-like to bulbous stem. Because of its saffron-yellow flesh, which smells unpleasantly sweet and carbide-like, it is also called saffron-fleshed thick foot . The fruiting bodies appear from August to November mainly in the coniferous forest.

features

Saffron-yellow flesh of a lengthwise cut fruiting body of the purple fat foot

Spores of the purple thick foot in the light microscope

Macroscopic features

The hat is 5–12 cm wide, almost spherical when young and later arched to spread out. The dry, silky, shiny surface is colored purple to blue-violet when young, then fades to a silvery-gray color and becomes dirty yellow-brown to brown with age. When young, the edge is connected to the stem by the pale lilac-colored and strongly developed veil ( Cortina ) and remains hung with remnants of the veil for a long time.

The rather dense, mixed-in lamellae are bulging on the stem. They are pale ocher to yellow-brown when young and later turn cinnamon-brown to rust-brown, but are never purple in color.

The club-like to bulbous stem is 5–10 cm long and 1–2 cm wide. It is firm, colored pale purple when young and pale ocher. The shaggy, pale purple when young, later whitish velum makes him appear almost in boots. When ripe, the tip of the stem has a fibrous, rust-brown ring zone due to the ocher to rust-brown spore powder. The club-shaped base is up to 4 cm thick.

The thick meat is saffron-yellow to ocher-brown. It smells sweet and disgusting to pungent carbide-like (like acetylene ) and tastes unpleasant and sometimes bitter.

Microscopic features

The apple seed-shaped, finely warty spores are 7–10 µm long and 4–6 µm wide.

Species delimitation

The purple thick foot is mainly characterized by its unpleasant, sweetish-carbide-like smell, but also by the saffron-yellow meat. The dry, silky hat skin, which is typical of the representatives of the subgenus Sericeocybe , helps to differentiate it from species of the subgenus Phlegmacium , which are also purple and have a greasy hat skin. The goat's fat foot ( Cortinarius camphoratus ) is very similar, it has a strong smell of billy goat and has purple flesh.

The edible dark purple veil ( Cortinarius violaceus ), which is darker in color and has a fine-felted to velvety-scaly cap skin, and the purple red chalk knight , which never has a veil, also have a superficial similarity .

ecology

The fruiting bodies of the purple thick foot appear from August to November, sometimes even earlier. The fungus is mostly found in coniferous forests, where it particularly likes to grow under spruce in the litter between lichens and mosses. It occurs particularly in low mountain ranges and prefers acidic and dry soils.

distribution

European countries with evidence of finding of the Lila Dickfußes.
Legend:
green = countries with found reports
cream white = countries without evidence
light gray = no data
dark gray = non-European countries.

The fungus is found in North America (Canada, USA), Asia (South Korea) and Europe. Fat foot is very rare in the Netherlands, England, Wales and the Irish Isles, and somewhat more common in Scotland. In Bulgaria it is widespread in the mountains and quite rare in Greece. In Germany, the thick foot can be quite common in low mountain ranges.

meaning

The purple thick foot is slightly poisonous. About half an hour to three hours after eating, the fungus causes nausea and vomiting.

Web links

Commons : Lila Dickfuß ( Cortinarius traganus )  - Album with pictures, videos and audio files

• Cortinarius traganus. In: Funghi in Italia / funghiitaliani.it. Retrieved January 4, 2014 (Italian, photos by Lila Dickfuß). 
• Rudolf Markones: Cortinarius traganus. In: Rudis Pilzgalerie / pilzseite.de. Retrieved January 4, 2014 . 
• Wolfgang Bachmeier: Lila Dickfuß (Cortinarius traganus). In: www.123pilze.de / pilzseite.de. Retrieved January 4, 2014 . 
• Paul Kirk: Cortinarius traganus. In: Species Fungorum. Retrieved January 4, 2014 . 
• Cortinarius traganus. In: MycoBank.org. International Mycological Association, accessed January 4, 2014 . 

Individual evidence

1. ↑ ^{a b c d} Ewald Gerhardt: Mushrooms. Volume 1: Lamellar mushrooms, pigeons, milklings and other groups with lamellas (=  spectrum of nature / BLV intensive guide ). BLV, Munich / Vienna / Zurich 1984, ISBN 3-405-12927-3 , p. 251 .
2. ^ ^{A b} Hans E. Laux: The new cosmos mushroom atlas . 1st edition. Kosmos, Stuttgart 2002, ISBN 3-440-07229-0 , pp. 172 .
3. ↑ ^{a b} Karin Montag: Lila Dickfuß Cortinarius traganus In the virtual mushroom book. In: Tintling.com . Retrieved January 4, 2014 .  
4. ↑ ^{a b} Cvetomir M. Denchev & Boris Assyov: Checklist of the larger basidiomycetes in Bulgaria . In: Mycotaxon . tape 111 , 2010, ISSN  0093-4666 , p. 279-282 ( online [PDF]).
5. ↑ Belgian List 2012 - Cortinarius traganus. Retrieved January 5, 2014 .  
6. ↑ Armin Mesic & Zdenko Tkalcec: Preliminary checklist of Agaricales from Croatia. II. Families Agaricaceae, Amanitaceae, Cortinariaceae and Hygrophoraceae. In: Mycotaxon . Vol: 83, 2002, pp. 453-502 (English, online ). Online ( Memento of the original from September 24, 2015 in the Internet Archive ) 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.  
7. ↑ Worldwide distribution of Cortinarius traganus. (No longer available online.) In: GBIF Portal / data.gbif.org. Archived from the original on January 6, 2014 ; Retrieved January 5, 2014 . 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.   
8. ^ GI Zervakis, E. Polemis, DM Dimou: Mycodiversity studies in selected ecosystems of Greece: III. Macrofungi recorded in Quercus forests from southern Peloponnese. In: Mycotaxon . Vol 84, 2002, pp. 141-162 ( online ). Online ( Memento of the original from September 24, 2015 in the Internet Archive ) 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.  
9. ↑ ^{a b} DM Dimou, GI Zervakis & E. Polemis: Mycodiversity studies in selected ecosystems of Greece: IV. Macrofungi from Abies cephalonica forests and other intermixed tree species (Oxya Mt., central Greece). In: [Mycotaxon] . Vol: 104, 2008, p. 39–42 (English, online PDF).
10. ↑ Grid map of Cortinarius traganus. (No longer available online.) In: NBN Gateway / data.nbn.org.uk. Archived from the original on January 6, 2014 ; accessed on January 5, 2014 . 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.   
11. ^ Cortinarius traganus. Pilzoek database, accessed January 5, 2014 .  
12. ^ TV Andrianova et al .: Cortinarius traganus. Fungi of Ukraine. In: cybertruffle.org.uk. Retrieved January 5, 2014 .  
13. ^ NMV Verspreidingsatlas online: Cortinarius traganus. In: verspreidingsatlas.nl. Retrieved January 5, 2014 .