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Poisonous and Edible Fungi (Part 2).

Updated on November 17, 2010

All photos show edible fungi, but careful!!

Click thumbnail to view full-size
Best known: The Field Mushrooms Horse Mushroom    wiki.commonsSt George Mushrroom    flickr.comLawyer's Wig Mushroom    uprightuk.comWeeping Widow Mushroom.  An unfortunate name as is harmeless and tasty  shutterstock.comParasol Mushie    mushroom table.comGiant of the lot!
Best known: The Field Mushrooms
Best known: The Field Mushrooms
Larger Horse Mushroom    wiki.commons
Larger Horse Mushroom wiki.commons
St George Mushrroom
St George Mushrroom
Lawyer's Wig Mushroom
Lawyer's Wig Mushroom
Weeping Widow Mushroom.  An unfortunate name as is harmeless and tasty
Weeping Widow Mushroom. An unfortunate name as is harmeless and tasty
Parasol Mushie    mushroom
Parasol Mushie mushroom
Giant of the lot!
Giant of the lot!

Similarity Makes Collecting Dangerous

Edible Fungi (Part 2).

If you read my early hub article about mushrooms and toadstools, you will have found that the borders between the two are really quite fuzzy. That is, there are poisonous fungi we call mushrooms as well as harmless, edible “toadstools” we leave severely alone because of the name they have been tarred with.

What are they anyway? Mushrooms and toadstools are the “fruit bodies” of specific types of fungi. Fungi are not plants and they have two separate “kingdoms.” The mostly green plants which have chlorophyll and the huge world of the fungi which don’t, although they do share several characteristics with plants and, indeed, animals.

Fungi are neither all bad and the “excrement of the soil,” as Francis Bacon dubbed them, not all good, the “flowers of the Earth,” as some Mexican Indians styled them. Some early tribes featuring edible fungi in their diets saw them as meat rather than plant food - and some do contain “chitin,” the same substance found in the exoskeletons of many insects.

Scientists specializing in fungi are known as “mycologists” and can be found operating in large botanical gardens as well as the remote parts of the earth locating new species.

As tasty as they are, it’s a great shame an edible fungus all too often appear little different to the layman than another which is fatally poisonous. In fact, the poisonous substances in fungi such as the Amanitas is some of the most deadly known to man, (Phallotoxins and Amatoxins). These and another dozen species are wide spread and not uncommon in Britain, which is why few non-experts trust themselves to gather fungi - mushrooms - for the pot, preferring to stick to those available in the supermarket. Some overly cautious folk even prefer to eat no fungi from any source saying that it is easy for even an expert to make a mistake and who can say whether some madman has included a deadly variety in the market mushies. And it is true to say that you only need make one mistake to pay with your life. Perhaps the best way would be to grow them at home if you have the time and space.

You will have heard all or some of the following facts about fungi:

Edible fungi peels easily

While cooking, a silver spoon blackens if fungi is the poisonous variety

Salt turns yellow on the gills of poisonous fungi

Species eaten by animals is safe

If it smells nice, it’s OK

Bright colored fungi are poisonous

Fungi that change color while preparing are poisonous

Fungi that exude a milky sap are poisonous

Cooking or drying destroys any poison

Grassland fungi are all edible.

Not ONE of these gems of folklore can be relied upon and should not be believed, although some of the “rules” are true for SOME of the fungi. But there are many people lying in early graves all over the world who were guided - or misguided - by these so called facts.

As most of the problems with identifying edible fungi occurs in woodland species - but not all - the focus in this article will be on edible mushrooms found in open, grassland areas. And the poisonous ones found there will get a mention, too.

Before you actually go mushrooming, unless you go with an expert, you will need to buy a good guide book on the subject. I recommend “How to Identify Edible Mushrooms,“ a Collins guide by Richard Harding, Tony Lyon and Gill Tomblin. Obviously, providing you with enough information, graphics and pictures to keep you safe is beyond the scope of a hub article.

First, the ones to stay away from. There are actually about the same number of poisonous fungi as there are edible, so you need to take care.

To avoid. Common Ink Cap, Ergot, Livid Entoloma, Red-staining Inocybe, Yellow-staining Mushrooms, Liberty Cap (also called Magic Mushroom), Ivory Clitocybe (also called Sweating Mushroom), Stinking Parasol.

Common Ink Cap might easily be used as Antabuse, the chemical used to cure alcoholics by making them ill if they drink. Ink Cap has the same effect of its poison combining with any alcohol in the blood stream and causing vomiting, etc. Can be eaten by teetotalers!

Ergot. This is the infamous fungus that is parasitic on grass including cereals, especially Rye and caused many deaths in France before being identified. You are not likely to come across it with any intention of gathering it for the pot.

Livid Entoloma. This IS the main poisonous grassland fungi to identify and stay away from as it is rarely fatal, but causes about 80% of all fungi poisoning in France. It can also be confused with several of the edible species

Red-staining Inocybe. One of the nastier fungi as regards poisonous effect from its toxic amount of muscarine. Can kill you.

Yellow-staining Mushroom. Not common but easily mistaken for edible Horse or Field Mushrooms. Not usually lethal, but with nasty short-term effects.

Liberty Cap or Magic Mushroom. Contains a hallucinogenic (psilocin) and can have effects like LSD. It is illegal to prepare drugs from the mushroom, but it can be eaten. Careful with after effects from strong drug. Very common after heavy rain.

Ivory Clitocybe. Easily confused with edible fungi but very toxic and can induce heavy sweating causing weight loss of up to 8 kilos!

Stinking Parasol. Not especially deadly, but some of this family are lethal so stay away as the ones that smell less bad are actually more lethal.

Edible Fungi. I have added pictures where possible for these. Field Mushroom, Horse Mushroom, St George Mushroom, Shaggy Ink Cap (Lawyer’s Wig), Weeping Widow, Parasol Mushroom, Meadow Waxcap, Field Blewitt (Blue Leg), Fairy Ring Champignon, Giant Puffball, Smaller Grassland Puffball. Note: None of the above edible mushrooms stand alone as being clear cut edible fungi, except the puffballs whose size makes them impossible to confuse with any other fungi, except a few members of the same family, some less edible, but none of which are lethal. They should be eaten while immature and can be baked whole if you have a large oven. Incredible fungi, shame they are not more wide spread.

The other edible mushrooms nearly all have several which look alike and can make you ill or worse. To be really honest, I won’t be going mushrooming any time soon, with or without an expert. No matter how good your guide is, the fungi in the field never look quite like the illustration. It’s just too easy to be fooled and to end up needing an emergency liver transplant. I do occasionally buy button mushies in Tesco to fry with the bacon, but the rest will remain largely unmolested by moi…

Do remember we have only discussed fungi growing in open grasslands, there are many, many more which confine themselves to broad leafed and pine forests and are even harder to correctly label.  I have also not mentioned truffles as they are rare away from scrub oak forests and the wild pigs of Spain and France which eat them, thereby propagating the spores..





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    • diogenes profile imageAUTHOR


      10 years ago from UK and Mexico

      Hi all: Evidently, so much illness from toadstool ingestion goes unreported, even some deaths from it. It can also damage your liver for life even if you don't die (immediately). I love mushrooms and they are non-fattening, too, but I don't eat them from the wild: it would be different if we were still hunter-gatherers with the skills we once had as well as the need. Thanks for all your comments...Bob

    • GarnetBird profile image

      Gloria Siess 

      10 years ago from Wrightwood, California

      I loved mushroom hunting in Ohio when I was young-we fried them (after battering them up) NICE Hub--I read that Shittake Mushrooms help fight cancer and other diseases.

    • Hello, hello, profile image

      Hello, hello, 

      10 years ago from London, UK

      I love mushrooms but would be brave enough to go and pick them. I make safe and buy them in the supermarket.

    • Nellieanna profile image

      Nellieanna Hay 

      10 years ago from TEXAS

      Fascinating. Texas isn't famous for its native mushrooms, though after rains I find some in my lawn, close to a stump of a sawed-down tree. I'd never be courageous enough to eat them. I lived in Southern Indiana at one time, though, and there were some very delicious edible mushrooms in the woods nearby - morels.

      You might enjoy this information about them.


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