Where Can I Find Cramp Ball Fungus?

Where can I find cramp ball fungus?

You will usually find cramp ball fungus growing on dead wood, in deciduous woodland – in temperate countries.

They favour Beech, Oak and Ash trees and are a relatively common fungi in the UK and mainland Europe.

Cramp ball fungus plays an important role in breaking down dead trees in deciduous forests.

Cramp ball fungus (real name Daldinia concentrica – of the genus daldinia), is also known by other common names.

This includes: carbon balls, carbon fungus, coal fungus and King Alfred’s cakes – aka burnt cakes.

They are usually black on the outside and black/silver internally – with the silver layers being the concentric rings inside.

These rings are known as growth rings or concentric zones.

Just like tree rings, each of these silver rings signifies 1 year’s worth of growth.

Discovery and classification

Daldinia concentrica was first described by the British mycologist James Bolton in 1971 as Sphaeria concentric.

It wasn’t until the late 19th century that it was reclassified and its scientific name (Daldinia concentric) given by Italian mycologists Giuseppe De Notaris and Vincenzo de Cesati.

The name “concentrica” comes from the concentric rings in the interior of the fruiting body which represent a season’s growth and reproduction.

Daldinia Concentrica uses

Fire lighting

Daldinia concentrica is great for fire lighting purposes.

It can take a spark from a firesteel or open flame which will then cause the fruit to smoulder, creating a large hot area once blown on – just like charcoal briquettes.

You can then use this to ignite a tinder bundle, such as dry, dead grass.

Transportation

It will slowly smoulder for hours, and can also be used to transport your fire in the form of a glowing ember.

This enables you to effectively carry your fire with you, speeding up the firefighting process when you arrive at the new site.

Caution! – These things burn hot!

You are obviously using them for this quality, but I would just caution you to think about storage once they are lit, as they effectively turn into charcoal.

Even a slight breeze will fan the ember and they do not easily self-extinguish.

You need to consider where you place them, as they want to burn and will ignite other objects accidentally if not monitored.

To extinguish these, you can cover them in water or crush them into the soil, presuming there is nothing in the soil that will catch, like peat, etc.

Use carefully and watch those fingers!

This is a great video from MCQ Bushcraft:

Daldinia concentrica facts

Daldinia concentrica is easily recognizable due to its carbon-like lumps on deadwood surfaces.

Rather than having the typical parts of a mushroom such as gills, a cap, a stem, or pores, this species consists of a stroma form with flask-shaped cavities called perithecia that are embedded within.

Fruitbody/Stroma

The fruiting bodies of D. concentrica are usually 2 to 10 centimeters in diameter and start off as matte, purple-brown before becoming jet black with age.

As the mushroom develops and ages, the stroma dries out and becomes more brittle, forming visible growth rings when cut in half.

The size of the fruit body is also an indicator of its age, with larger specimens being older than smaller ones, and some of these mushrooms staying on deadwood for many consecutive seasons.

Perithecia

Cramp ball fungus, or Daldinia concentrica, is a type of fruiting body that is characterized by the lack of a spore surface.

Instead of this surface, the fungus has protrusions on its exterior (small bumps).

These protrusions are made up of flask-shaped chambers known as perithecia. This is where ascospores (spores that have been produced meiotically) are located.

Stem

Due to its unique structure, the D. concentrica fungus is different from other varieties in that it does not possess a stem.

Instead of having a slender and straight stem, this species bonds closely with the surrounding deadwood via a large, flat area beneath its body.

Asci

Ascospores also referred to as asci, are tiny cylindrical bodies measuring approximately 200µm x 10-11µm and have amyloid tips.

Inside each ascus are eight ascospores arranged symmetrically.

Ascospores and Spores

Ascospores are spores contained in an ascus.

When these ascospores are forced out of the ascus, due to high water pressure, via the necks of the perithecia – they are released into the environment.

This leaves behind a darker patch of wood around the fungus.

The spores are ellipsoidal and measure roughly 12-17 by 6-9 micrometres in size.

Odour

Daldinia concentric has no noticeable odour.

Edible or inedible

Daldinia concentrica is an inedible fungus.

Even though the flesh of this species is not poisonous, the fruit body is too hard to be consumed and should not be eaten.

Spore print

The natural spore print of Daldinia concentrica is distinctive – it’s black and broader than the mushroom itself!

Usually, a black spore print can be found around 3cm wider than the fungus itself.

Habitat

Cramp ball fungus can be found in woodland and deciduous forests.

It favours dead and decaying branches of Ash, Beech and Oak trees.

Location

Daldinia concentrica can be found in deciduous forests of the United Kingdom, Ireland and mainland Europe

Although not as common, it can also be located in the temperate climate areas of North America, Australia, and South America.

Season

This mushroom can be found year-round, however, the release of ascospores only occurs seasonally, from May to November.

Do not confuse with:

Kretzschmaria deusta, or the Brittle Cinder Fungus, should not be confused with Daldinia concentrica.

While both black, carbonaceous mushrooms tend to grow on dead wood, K. deusta does not form the same rounded fruitbodies.

It also does not have the characteristic ring-like growth pattern inside its stroma normally associated with Daldinia concentrica.

Where can I find cramp ball fungus? – FAQ’s

Why are they called cramp balls?

Cramp balls get their name from an old wives’ tale which says that carrying the fungus on your person would protect you from getting leg cramps.

Whether you buy into that or not, the name has indeed stuck and ‘cramp balls’ is what they are commonly referred to as.

Are King Alfred’s cakes poisonous? Is Daldinia Concentrica poisonous?

The inedible fungus Daldinia concentrica is not poisonous, but should not be eaten.

It is too hard to be consumed anyway.

What sort of trees do cramp balls grow on?

Cramp balls will grow on dead Beach, Oak and Ash, but will also grow on other deciduous trees.

If you venture down to your local broadleaf woodland or forest, you may just find some.

Which English king let the cakes burn?

According to legend, it was King Alfred who let the cakes burn.

During the 9th century, parts of Britain had been overrun by Vikings.

King Alfred was trying to escape the Vikings and is said to have taken refuge in an old woman’s house.

The old lady was baking cakes and asked King Alfred to watch over them while she went outside.

King Alfred forgot to watch over the cakes and they ended up burning.

Not knowing he was the king, he was scolded by the woman for this.

In his shame, he scattered the cakes in the woods to get rid of the evidence.

Due to the fact that Daldinia Concentrica is a black fungus, and looks burnt in its appearance, it is said to look like burnt cakes and has been tied to this legend.

It is commonly known as King Alfred’s cakes.

Where did Alfred burn the cakes?

Athelney, Somerset is where King Alfred is said to have burned the cakes, inside the home of a peasant woman.

Whether the story of the cakes is true or not, Athelney was of great importance to King Alfred and is where he built a fort and rallied his troops to fend off the Vikings.


Want more??? Take a look at more fire-lighting ignition options here.


Fire lighting – Ignition

When all 3 Elements of the Fire Triangle Combine What can Occur?

This article outlines the main fire lighting options that are specific to bushcraft applications, in the Northern Hemisphere.

There are a number of ways to light a fire, with various tinder and ignition options available.

What you use will ultimately depend on your environment and what you have with you.

For this article, we will concentrate on the equipment used to start a fire, using a spark, flame or other magical force.

After reading this post, you should have a solid understanding of the different firefighting methods available and how to implement them effectively in the outdoor environment.

Matches

Picture of matchbox
Matchbox

Although it has slightly fallen out of favour to the more widely used lighter, the humble match is still a great option for fire lighting, as long as you take a few precautions.

It is good practice to become proficient at lighting a fire with just one match.

This way you do not to go through all your matches just to get a single fire lit.

Ideally, you should be aiming for one match, one fire!

This is easier said than done, but with practice and with the correct preparation, this can be achieved consistently.

Remember, prepare your kindling and fuel in advance, so that everything is ready to go.

Good practice

Keep the matches dry: it sounds obvious, but it’s easy to forget about your matches until you go to use them.

Matches and moisture don’t do well together – the heads will soften and disintegrate when trying to strike them.

Store your matches correctly, in a dry environment.

A dedicated waterproof matchbox is the best bet, such as a 35mm film canister, with a section of the striker glued to the inside lid.

If you have the time, you can also make one out of birch bark.

Ray Mears has a video on how to make one below:

How to light a match correctly

Everyone can light a match, can’t they? Well yes, but most don’t do it correctly. And why would they?

Most of the time it’s not the end of the world if you go through a few matches at home, lighting the BBQ or some candles.

If you are out in the field though, away from it all, it can really matter!

You need to get maximum use out of those matches and not use half the box to get a fire lit.

It may be your only ignition source, so learn to make them count.

Correct fire lighting technique

Assuming your matches are dry, the most important thing to have ready, before you even think about getting a match out of the box, is your kindling and main fuel source.

Using a standard pack of matches, find out which way the heads are facing. 

If the weather is dry, open the matches however you like. It will not make much difference.

Should it be raining or snowing though, open the pack from the other end (stick end) and keep the open end pointing downwards.

Put your back to the wind if it is raining, to shield the pack even further.

This is to stop any chance of a water droplet, or snowflake, getting in there, potentially ruining your match heads.

Assuming your hands are dry, take one match from the box by pulling one out and downwards.

Close the box. 

Hold the box in one hand, with the striker facing towards the match in the other hand.

Grip the match at the bottom of the stick with your index finger and thumb.

You now also want to place your middle finger directly on the match head itself.

This provides support to the match head and minimises the chance of it snapping on you.

If you have not done this before, you can be forgiven for being a little nervous about burning this finger when you go to strike the match.

However, in practice, the striking action is so fast, that your finger will be well out the way of the burning match head before it gets a chance to burn you.

You should naturally remove the middle finder when you strike and just have the match gripped between the thumb and index finger.

Strike the match!

Now that you have lit the match, immediately cup your hands and shield the flame.

You do not want the flame blowing out from a gust of wind. 

After a few seconds, the flame should establish and the main wooden stick should start to take and establish a stronger flame.

Now carefully take your flame to your kindling and keep it shielded while you ignite it. 

Once you have lit the kindling, you should now have an established flame that you can slowly build on with your different wood sizes, until you have a well-established fire.

Once the fire is stable and doesn’t need your constant attention, place the matches back in their box – not on damp ground.

Place back inside your pocket/backpack etc, to ensure they are kept dry.

You only used one match didn’t you, so you have plenty left for next time 🙂

Cigarette lighters

Clipper Lighter Bushcraft Firelighting
Standard refillable gas lighter

It doesn’t need much explaining and indeed some would regard it as cheating, but we all use lighters from time to time. 

They are fast and reliable.

Even though this is a common igniter, I would 100% advise that you practice and become proficient in the other methods (match, firesteel, etc), in all weathers.

This ensures that you can light a fire confidently, in a variety of conditions and environments, with multiple ignition options at your disposal.

If one fails you have another to use – it always pays to have a backup option.

Gas lighters

The disposable type is the most common and what most people think of when they think of a lighter.

I would urge you not to use disposable lighters if you can, as they are not great for the environment.

A good standard one that I like is the Clipper. They are refillable and you can replace the flints in them when needed.

They also just work! 

Windproof lighters: Another gas option is the windproof type – sometimes known as a butane torch.

These are designed for lighting up in bad conditions, by providing a jet like flame.

They use a piezo ignition and create quite a roar, which in turn uses up more gas than the standard type above.

The only problem with these types of lighter is that I am yet to find one that is reliable, as they all seem to break pretty quickly and stop igniting, hence me not recommending them.

If you do find a good one though, please let me know in the comments below.

Petrol lighters

Black Zippo Lighter
My trusty Zippo

One of my favourites is the petrol lighter, or to be exact a Zippo.

I just really like these and have used my trusty black version for donkey’s years.

They are solid and have that great unique ‘Zippo’ sound when opening and closing.

They are refillable, using the recommended specific lighter fluid – but at a push, you can also use other fuels, such as petrol or Coleman fuel.

Be very careful with these though and follow directions.

You can also replace the flints and wicks on them – and genuine Zippos also come with a lifetime guarantee.

The fuel can evaporate if left for a while, but if you are a regular user, these are a great option.

Correct technique

Using a lighter is pretty instinctive and I’m not going to insult you my telling how to light one up. There is only one way to do it.

However, I will mention trying to avoid rolling the strike wheel the wrong way, as this messes up the flint. That’s all I will say.

Once lit, as with matches, cup your hands to protect the flame whilst it ignites your kindling.

Place back in your pocket and get that fire roaring!

Ferro rods

Swedish Fire Steel - Light My Fire - Ferro Rod - Ferrocerium - Fire Lighting
Swedish Fire Steel – Light My Fire

The original ferro rods were composed of a mixture of 30% iron (ferrum) and the rare earth metal cerium – hence ferrocerium rod.

In recent times, this has been shortened to ferro rod, but is also known as a Swedish fire steel – or just fire steel.

Modern-day ferro rods are made from an alloy of rare-earth metals, known as mischmetal, which includes iron and magnesium to harden the material.

When struck with the back of a knife, or metallic striker, this action causes the metals to shed from the rod and combust.

This produces incredibly hot sparks – that can reach temperatures of around 3000 deg ℃ (5432 ℉).

If you have a good dry tinder such as some scraped birch bark or amadou, these sparks will ignite it very efficiently, with just a few strokes.

Ferro rods are incredibly simple in design and will last a very long time – that is their beauty.

They are very low maintenance and will still strike in all conditions, even if it is wet and cold.

They are an excellent tool, even if you only carry one as a backup to your lighter – I would always recommend carrying one when you are out.


Which ones are good?

Most firesteels are able to create a good shower of sparks.

Some are easier to use than others, with different lengths coming into play and handle options.

Some people like to take the time to make a custom firesteel, by affixing a handle made from deer antler or similar onto a blank rod. This makes for a nice looking tool.

Most standard options have a plastic handle though and are a solid, no-fuss option.

The one I currently use is the Light My Fire – 2.0 firesteel.

Light My Fire are a Swedish company, with their factory based in Västervik

They have been around a long time, and this simple to use and uncomplicated design makes this a great choice if you are looking for a decent ferro rod.

Flint and steel

Flint and steel striker in hand - fire lighting
Traditional flint and steel striker

The flint and steel is a traditional and time served fire lighting method.

When the steel striker hits the flint, the flint removes a very small piece of the striker’s metal and this creates a spark.

Not the other way around as is commonly believed.

You will not get anywhere near the same amount of sparks as you would with a fire steel, but this method does work and is ultra reliable.

The sparks produced are known as ‘cold sparks’, so you will need to be patient and try and catch one while it’s still glowing.

If you manage to get this spark to land on your chosen tinder, such as char cloth or some birch bark, you can then blow on this to encourage ignition.

As per the video below, you will need a nice sharp stone for this to work correctly, so that the small fragments of metal are removed.

Flint is ideal for this due to its ability to shed material and leave an incredibly sharp edge as it flakes away.

You can obtain some locally, or bring some in and keep it in a pouch along with your striker and tinder.

With some practice and correct technique, this is a great, reliable method, that has very little to go wrong.

Fire piston

Camp Fire Piston - Slam Rod - Fire Starter
The Camp Fire Piston – USA made

A fire piston – sometimes known as a slam rod – uses compressed air to ignite a small piece of tinder.

The fire piston is made up of two sections, one male part, one female.

The tinder – usually a piece of char cloth (see below) – is placed at the end section of the male part.

The male part then slides into the female (sorry).

When pushed down with force, the airtight seal causes the air inside to compress and raises the temperature to around 250 ℃.

This is usually hot enough to ignite the tinder.

The male part can now be removed and the ember placed onto your awaiting main tinder.

You can now blow on this to get your fire going.

Which one to get

There are a multitude of fire pistons on the market, with the bulk coming from China.

If you can, go for an American made fire piston.

One that works and also looks great is the Campfire Piston. It is made in the USA out of hickory wood.

A good video showing the fire piston in use can be viewed below:

Bow drill

A bow drill set is a great tool to use in the Northern Hemisphere and can create a good ember even with slightly damp wood.

You will need the following parts to create one:

Bow section: the main part that is drawn back and forward to create the drilling action. This is a formed from a carefully selected tree branch.

Cord: this attaches to the bow and is what grips and spins the drill. 550 paracord is usually used for this.

Drill section: this is what spins and ‘drills’ into the hearth below to create an ember.

Bearing block: used to create a low friction ‘cup’ that sits on top of the drill section and is held in place with your non-dominant hand.

Hearth: the base section of wood that stays fixed in place and is ‘drilled’ into, to create an ember.

Ray Mears demonstrates the process in the video below:

For an even more detailed look, MCQBushcraft has an excellent video on this also.

Magnifying glass

A very basic but effective method is to start a fire from a lense, usually a magnifying glass.

If you carry a standard plate compass, such as the Silva Expedition 4, then you will have a magnifying lens built into the compass.

You do need bright sunlight for this to work, but assuming the sun is strong enough, you can move the lens closer to the tinder until you have a small concentrated spot of light, that is laser focussed on your tinder.

If the beam of light is intense enough, the tinder will start to smoke and with a little help – eventually, ignite.

This is a great method to use, as it enables your compass to have a dual purpose.

Not much use if it’s cloudy though!

Summary

As you can see, there are many different ways to get a fire going. I would encourage you to try and master as many methods as you can.

Not only is it fun, it could save your bacon one day and is certainly not wasted effort.

We positively encourage you to leave a comment below or contact us to let us know what you think, good or bad.

We read them all.

Until the next time….

James

Bushcraft Hub