Archive for the Category ◊ Bit on the side ◊

Author:
• Friday, February 03rd, 2012

As winter seems to drag on and on, all mushroom foragers seems to be stuck in some kind of ‘no mans land’ of woe and sorrow… Hey ho!

Fomes fomentariusBut many fungi are perennial and more noticeable through the winter months. They’re easier to spot since many trees are bare and no dense foliage can get in your line of sight. And although not edible, they are worth a look. Some have good uses or properties that are quite interesting (probably not everyday use), as you’ll soon discover…

The Hoof Fungus or Tinder Bracket (Fomes fomentarius) is one of these annually persistent sights. This bracket fungus will get most people’s attention as many grow (often in groups) more or less at head height on the host tree (usually birch or beech). They’re also seen on fallen trunks and logs. It’s size is pretty substantial too. Growing up to 25cm in width and height, making it quite hard to miss!

The first thing you will notice is the familiar ‘hoof shape’ with a smooth dark grey upper zone and several layered, concentric zones below. The outer surface (crust) is almost as hard as the wood on which it grows. Go on, give it a tap! The light brown flesh within is very fibrous and quite hard too, smelling very acidic and fruity. A smooth underside shows the small light grey (sometimes light grey/brown) rounded pores, and like the upper concentric zones, the tubes also grow in several layers during the life cycle.

OK, so far this fungus seems to be pretty weird and particularly bland. But here comes the interesting stuff! Over the centuries, this has been a handy piece of nature our ancestors and die-hard survivalists alike have enjoyed to use…

To reconfirm, this bracket fungus is persistent throughout the year and very durable. One key feature is that it does not burn, but simply smolders. A hollowed out Hoof fungus was used to move (or store) burning embers that would keep for days at a time. The other English name ‘Tinder bracket’ is well founded too – When dried, the inner flesh catches a spark quite easily and can burn well – useful as a good ember (see this link for more info). A recent archaeological discovery uncovered a European Iceman who also had a use for this ‘Tinder Bracket’ -See the “Ötzi the Iceman” story here.

The fun doesn’t stop there though! Until relatively recently, a common use in Germany was the craft and creation of hats and bags, using the soft and pliable mycellial core (located inside the top-centre of the fungus). I intend to get a hat myself if they’re still out there, I must!

Just like many other fungi, there are sometimes useful medicinal uses. Centuries ago, Fomes fomentarius was widely used as a styptic to stop bleeding and as a drug to treat wounds. Even today fungi are invaluable in this area. The fascinating world of fungi never ceases to amaze me.

And before I end this post, I’d like to mention that, from general web visitor feedback and personal experience (rather than official research results), I consider this fungus be a ‘common’ species in the UK (more north than south). Several reference books have stated the main habitat to be situated in and around Scotland only, but I have found no end of these throughout Leicestershire and beyond. A recent enquiry to the ‘mushroomdiary.co.uk’ was questioning this very issue with positive ID’s from the Birmingham area. Migration and declination of fungi is a continual event, and local records are sometimes not up to date, and unfortunately there are no records at all from many areas. But on recent personal research, I’ve found that the appearance of this particular fungi is increasing throughout the UK. Which is all good stuff!

Bracket fungus - Tinder Bracket

Note the concentric layers and upper grey touch surface. Bottom picture shows the underside pores. The tubes are formed in several layers during the life-cycle.

Author:
• Tuesday, October 11th, 2011

Walking along a woodland path, the adjacent foliage was heavily overgrown. But something still caught the corner of my eye at the base of a large oak tree. At first, I thought people had left some rubbish, considering the size, but as I removed the overgrowth (receiving many lovely nettle stings!) the picture became clearer.

Meripilus giganteusThis was indeed a Giant Polypore (Meripilus giganteus or Polyporus giganteus) occupying a good half of the tree’s circumference. Older parts on one side and younger ‘new’ born’ specimens emerging on the other.

A common mistake would be to confuse this bracket fungus with Hen of the Woods (Grifola frondosa) but on comparing notes, you’ll realise that these things are just too damn big! And the ones featured here will grow bigger still.

The fruiting bodies of this polypore branch out in clumps. Each clump shares the same short and chunky stem, at the end of which are numerous fan-shaped caps ranging in size from 40 – 90cm in diametre, but are relatively thin compared to this width. They’re quite tough (but flexible) to prize away from the central stem, so a good sharp knife is in order!

Apart from their distinctive size, the caps have reliable and distinctive markings. Their light brown ‘overall’ colour (which darkens with age) display several concentric, light/dark zones. On closer inspection you’ll see a layer of very fine brown scales. The edges are fanned or rosette-like and slightly grooved.

The Giant Polypore might not be as tasty as Chicken of the Woods but it is edible. It does smell quite nice but can taste quite bitter. But just like the Beefsteak Fungus, there maybe be a cooking preparation method to make this taste alot better. I haven’t tried myself, but it’s worth a go I think.

Keep a look out for these beauties this autumn. They can be found at the base of (mainly) beech or oak trees (or nearby, emerging from the underground roots) and sometimes on stumps. If you do take some samples you’ll notice after time the pores on the underside turn blackish where touched or bruised. Although unsightly, I don’t believe this affects the final taste, if prepared like the Fistulina hepatica for example.

Polyporus giganteus

The Giant Polypore - Older specimens appear darker brown (top) while younger ones are a lighter shade (bottom). Note the pure white pores underneath (middle) showing a much younger specimen on the right.

Author:
• Tuesday, August 23rd, 2011

It’s very rare that I do not see one of these bracket fungus when I’m out and about on a forage. They grow quite large and are around all year. It would be hard to miss one.

The Birch Polypore or Razorstrop fungus (Piptoporus betulinus) is an extremely common polypore fungus. As the name suggests, it is found exclusively on birch trees.

At maturity they are typically semicircular or kidney shaped as they grow outwards from the tree body. Shapes and sizes may differ a little but generally this is the norm. As I mentioned earlier, they can grow to a good size – between 20 – 30cm across and 8cm thick! They’re quite a sight to behold when they get to this size.

The colour is that of pure white (when younger) and as it matures it changes to a dull grey or tawny brown. It’s smooth surface often cracks, showing white flesh underneath. The consistency is spongy or slightly rubbery to the touch. These fruiting bodies can usually last from one year into the next, that is why you can see them all of the time over the winter months.

Razorstrop Fungus

Typical semi-circular/kidney shape of the Birch Polypore

On the underside the pored surface is smooth and pure white, but over time this gets marked with dark patches from age and/or insect attack.

I know what you’re thinking though. Is this fungus edible? Well, unfortunately not. It actually smells quite pleasant but it’s taste is quite bitter. It’s a shame, I know.

At least it had it’s uses even as far back as 5,300 years ago! In 1991 “Ötzi the Iceman”  (Europe’s oldest natural human mummy) was discovered by German tourists in the Alps. Found in his possession were two species of polypore mushroom. One of which was the Birch Polypore (for medicinal use) which is known to have antibacterial properties. It could have also have been used to sharpen blades or tools – hence the name ‘Razorstrop’.

Polypore fungus

Here are some very young Birch Polypores growing out of from the bark.

Author:
• Tuesday, June 14th, 2011

Well – it’s been the driest spring we’ve had since records began! That probably explains why I haven’t had much luck in finding some good edible spring mushrooms up for offer! But I did stumble across some large edible beauties today – unfortunately I found them too late. They were past their prime and had dried out quite a bit due to old age and the dry weather. Curses!

Large Polypore mushroomEven in this condition, they were still good examples of Dryads Saddle (Polyporus squamosus) – a polypore mushroom which can grow quite large indeed as you can see from the photos. All polypores (bracket fungus growing on trees) have ‘pores’ instead of gills where the spores disperse from.

This species is a parasite (and/or Saprotroph which feeds off decaying matter) on deciduous trees such as elm, beech and sycamore causing severe ‘white rot’. They burst into life in late spring/early summer and can be found on stumps as well as living trees growing in clusters or singularly. Although edible, only young specimens are worth taking and don’t really taste that great anyway. Which is a shame because of their ample size even when younger.

Apart from it’s large dimensions (cap up to 60cm accross and stem up to 7cm) other identifiable characteristics are the brown scales which are spread in a semicircular pattern accross the ochre-yellow cap, the flesh of which is relatively thin. As shown in these pictures, once past it’s prime, the mushroom soon deteriorates, becoming very dry (especially helped along by this hot weather!) and infested with insects. Urgh! But nevertheless they are a great site to behold when in a large group.

There are many old folklore stories behind mushrooms describing how they acquired their common names (sometimes several stories from several countries), and this one does not disappoint in originality. The ‘Saddle’ element derives from the shape of the cap which can sometimes resemble a horses saddle. The word Dryad means ‘Tree nymph’ in Greek mythology. I find myself imagining what the Dryads horse looks like!

Drying up! Once past their prime, These polypores soon dry up and waste away. How the mighty have fallen!

In contrast to these older specimens, take a look at this very young specimen I found only a few weeks later. This little beauty is only 2 inches long. I left it to grow and I’m guessing it won’t grow that large anyway due to the fact there were older, dying fruit bodies near by – around 4-6 inches in size.

Dryads Saddle - Young

A younger and much smaller version of the Dryads Saddle.

See the extra ID notes below in helping identify this fine mushroom, notably how the stem is blackish towards the base. Hope you find some too soon, this is the season…

ID Notes - Dryads Saddle (Polyporus squamosus)

Author:
• Wednesday, September 08th, 2010

It’s a comical sight and nice surprise when you first come across an oak tree sticking it’s pinky red tongue out at you! It’s happened to me a few times and I seem to be getting use to it.

This is the common Beef Steak Fungus (Fistulina hepatica) found during late summer and autumn. It’s a parasitic species usually found at the base of oak trees and sometimes horse chestnut. It definitely looks freaky when younger, it’s fleshy protrusion almost exactly mimicking an Ox tongue.

The colour initially is pinkish then getting redder and finally brown with age. You must get touchy-feely with a younger specimen because it has a spooky ‘flesh’ like feel, maybe even a little rubbery. The surface even has the warty tongue taste buds on! The pale yellow pores on the underside which age red-brown sometimes leak a blood-red juice. This also adds to the overall wierdness of this critter. Marvellous stuff.

The common ‘Beef Steak’ definition naturally refers to the flesh which resembles raw steak. And I know what your asking, and the answer is no! It doesn’t taste like beef steak. It is edible though but can be quite bitter (younger ones more so). You can simmer it or soak it in milk for a day to help reduce this bitterness. I intend to try it very soon and will hopefully mention in a later post. There is no worry in identification. There’s nothing out there that even gets close to resembling our ‘beefy’!

Beef Steak Fungus (Fistulina hepatica)

A young example of a Beef Steak Fungus resembling a pink-red tongue!

One last snippet of trivia for you – this fungus can cause ‘brown rot’ in the infected tree, which in turn makes for a very sought after kind of timber. In the furniture industry it is named ‘brown oak’ and is in much demand. It is richer brown in colour to normal uninfected oak. Sometimes only slightly infected trees can create a ‘striped’ pattern in the wood – a mixture of light and dark.

The photos shown above are of a young individual. All the other shots I have of previous encounters have been munched to pieces by the local, and very hungry insect mobs. The older the fungus gets, the tougher the consistency. Colour also changes from an orange-red through to a purple-brown.

Older Beef Steak Fungus

As the Red flesh of the Beef Steak Fungus grows older it may lose some of it's surface texture