True Tinder Polypore

(Fomes fomentarius)

Conservation Status
True Tinder Polypore
  IUCN Red List

not listed

     
  NatureServe

not listed

     
  Minnesota

not listed

     
           
           
           
 
Description
 
 

True Tinder Polypore fruiting body (conk) is a 2 to 8 wide, ¾ to 4¾ thick polypore. It is hoof-shaped, rounded and curved downward on top, flat or slightly angled upward below. There is no stalk.

The upper surface is concentrically zoned and hairy when young. The zones are grooved and vary in color in shades of gray and brownish-gray. It soon becomes gray and hairless. The margin is whitish and velvety on actively growing conks.

The underside is whitish. The pore tubes are not layered (stratified).

The flesh is hard and cinnamon brown. When cut in cross section there are no white lines (mycelial threads) visible.

An individual conk can survive for years, even decades, forming a new ridge or furrow each year. It is found on standing or fallen dead trees or on the trunk of a living tree.

 
     
 

Similar Species

 
  False Tinder Fungus (Phellinus igniarius) old conks are black and often cracked above. The margin and undersurface are light brown and velvety on actively growing conks. The pores are stratified. The flesh in cross section shows white mycelial threads.  
     
 
Habitat and Hosts
 
 

Usually birch, but also other hardwoods

True Tinder Polypore causes white trunk rot on hardwood trees. It turns the wood into a soft, white, spongy mass.

 
     
 
Ecology
 
 

Season

 
 

Year-round but grows mostly in early summer and autumn

 
     
 
Use
 
 

True Tinder Polypore gets its name from its most common usage, as tinder for starting fires. Otzi the Iceman, the 5,000-year-old mummy found in the Alps in 1991, was carrying four pieces of it.

 
     
     
 
Distribution
 
 

Distribution Map

 

Sources

4, 7, 24, 26, 29, 30, 77.

 
  6/14/2018      
         
 

Occurrence

 
 

Very common and widespread

 
         
 
Taxonomy
 
  Kingdom Fungi (fungi)  
  Subkingdom Dikarya  
  Division Basidiomycota (club fungi)  
  Subdivision Agaricomycotina (jelly fungi, yeasts, and mushrooms)  
  Class Agaricomycetes (mushroom-forming fungi)  
  Subclass Agaricomycetidae  
  Order Polyporales (shelf fungi)  
  Family Polyporaceae (bracket fungi)  
  Genus Fomes  
       
 

Synonyms

 
     
       
 

Common Names

 
 

False Tinder Fungus

Hoof Fungus

Tinder Conk

Tinder Fungus

Tinder Polypore

True Tinder Polypore

 
       

 

 

 

 

 

Glossary

Conk

A shelf-like, bracket-shaped fruiting body of certain fungi.

 

Mycelium

The vegetative part of a fungus; consisting of a mass of branching, thread-like hyphae, through which a fungus absorbs nutrients from its environment; and excluding the fruiting, reproductive structure.

 

Polypore

A bracket fungi. A fungi that produces its spores in pores on the underside of a woody fruiting body (conk).

       
Visitor Photos
   

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Luciearl
       

Found on birch snag

  True Tinder Polypore   True Tinder Polypore
       
Robert Briggs
       
  True Tinder Polypore    
       
MinnesotaSeasons.com Photos
   
  True Tinder Polypore   True Tinder Polypore
       

 

Camera

     
Slideshows
   
  Hoof Tinder Bracket Fungus
Andree Reno Sanborn
 
  Hoof Tinder Bracket Fungus  
 
About

Bracket fungus.

Hoof Tinder Fungus

Fomes fomentarius

 
     
  Fomes fomentarius - fungi kingdom
Fungi Kingdom
 
   
 
About

Published on Jan 23, 2015

Fomes fomentarius - fungi kingdom

 
     

 

slideshow

       
Visitor Videos
       

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Other Videos
 
  Tinder Fungi (Fomes fomentarius) on Birch Tree
Carl Barrentine
 
   
 
About

Published on Jun 3, 2012

Photographed at the Rydell NWR, Minnesota (03 June 2012).

   
       
  Fomes fomentarius Tonderzwam
Michael Inden
 
   
 
About

Uploaded on Jul 11, 2009

Tonderzwammen op beuk

   
       
  Firestarter Mushroom - Fomes fomentarius
sporeprints
 
   
 
About

Uploaded on Feb 24, 2009

There is proof that prehistoric peoples used this mushroom to start fire with, and carry fire in. Tradd discuss this mushroom in the Pisgah national Forest.

   
       
  Fomes fomentarius (Ίσκα)
Kostas Tzouratzoglou
 
   
 
About

Published on May 16, 2015

   
       
  Iasca comuna, Fomes fomentarius, copita calului, de ajutor in stuparit
Adrian Manolache
 
   
 
About

Published on Nov 22, 2013

In clipurile mele despre ciuperci veti intalni cateva sute de specii de ciuperci si bureti. Unele ciupercisunt comestibile, altele necomestibile, toxice, halucinogene sau mortale. Foarte multe clipuri infatiseaza ciuperci medicinale, in special, imunomodulatoare, anticancerigene, antioxidante etc. O parte dintre clipuri prezinta si ciuperci cu o descriere completa, necesara pentru identificare si utilizare. Atentie! Exista si ciuperci de padure a caror identificare este nesigura sau doar in lucru. Pentru orice fel de informatie, va rog sa lasati mesaj.

Google Translate: My Videos about mushrooms you will find hundreds of species of fungi and sponges. Some edible ciupercisunt other inedible, toxic, hallucinogenic or fatal. Many videos depict medicinal mushrooms, in particular, immunomodulatory, anticancer, antioxidant etc. Some of the clips shows and fungi with a complete description, required to identify and use. Please note! There are wild mushrooms whose identification is insecure or just working. For any information, please leave message.

   
       

 

Camcorder

         
Visitor Sightings
   

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Luciearl
1/15/2020

Location: Cass County

Found on birch snag

True Tinder Polypore


Robert Briggs
10/20/2016

Location: Afton State Park, Southern River Trail

True Tinder Polypore


     
     
 
MinnesotaSeasons.com Sightings
         

 

 

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Created: 10/26/2016

Last Updated:

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