In California, Poisonous Death Cap Mushrooms Are the Forager's Bane
npr.org
npr.org
There were quite a few cases where asian immigrants mistook death caps for the edible Asian paddy straw mushroom, and got very sick.
Never mind the gills, which were mentioned in the article, the ring is a dead giveaway, and if you don't know what the ring is, again, you shouldn't be picking mushrooms to eat.
(The way that amanitas form and grow often leaves a tattered-looking membrane circling the middle of the stem. You can see it in the pictures in the article.)
I'm sorry that this lady got so sick. Luckily, she got a second chance, and hopefully she will learn more about what she's doing before she goes picking again.
I can only assume she was careless or clueless.
Within USA/Canada, learn to identify death caps and destroying angels. If you stay away from any mushroom that you aren't sure is one of these two, don't eat any wild mushrooms raw (very few mushrooms are good raw anyway), and don't gorge on anything that isn't obviously identifiable, your odds of doing yourself any permanent harm are very low.
That's not to say all other species are "safe." Obviously, you should only collect species that you can identify. But amanitas are basically trivial to identify (know their tricks, cut mushrooms in half to check for hidden/immature gills), and if you don't eat Amanitas (again, in USA/Canada), it would be a truly freak incident if you actually died of poisoning. You're more likely to be eaten by a bear.
If you are incapable of this, then not only do you have no business foraging for mushrooms you probably shouldn't be preparing your own food. Number of people killed or disabled due to foraging poisonous mushrooms is nothing compared to those killed by improper food preparation and handling, but you don't see people quaking in their boots in the poultry aisle of the grocery. The article cites five deaths in five years in all of California. How many people died of salmonella and botulism in that time? How many mushroom-phobes would be so reckless as to drink "raw" milk?
A lot of supposedly poisonous mushrooms are in fact edible, especially when boiled.
I can see paying someone to be there a couple hours a week, but as a full time job that seems ridiculous.
I used to bring psilocybes to my local pharmacy when I started to search for them and was not quite sure yet what they exactly look like. I got bad looks but was never sent away without safe information.
https://en.wikipedia.org/wiki/Amanita_phalloides#Similarity_...
http://www.abc.net.au/news/2015-02-07/death-cap-mushroom-sea...
Another common garden plant most people dont know to be aware of is Oleander. I see this everywhere like in schools and am amazed. People have died using the branches as skewers to cook. The smoke can also be poisonous if people burn this plant.
https://en.wikipedia.org/wiki/Nerium
And for interest, only a problem in North Queensland check out the Gympie Gympie tree. This is really something to keep a wide berth. Amazing what nature can produce.
http://www.australiangeographic.com.au/topics/science-enviro...
http://4.bp.blogspot.com/-VeN5uDOjoIA/Tx9Qq5oQCLI/AAAAAAAArV...
Edit: apparently chemical tests exist https://en.wikipedia.org/wiki/Chemical_tests_in_mushroom_ide...
Sure, that prevents people from dying. But what about all those mushrooms that people didn't dare pick? Is that not a loss - a loss that could be remedied by such a kit?
Not really. Just because something doesn't contain a handful of specific poisons doesn't mean you want to eat it. The vast majority of mushrooms are neither poisonous nor edible.
https://en.wikipedia.org/wiki/Galerina_marginata
Such simplistic rules are a bad idea when foraging. Before you eat anything, positively identify it.
To forage safely for plants or mushrooms, you should know the identifying characteristics of your target species and any non-edible lookalikes.
There are definitely no general rules for determining mushroom edibility.
A great resource is Mushrooms Demystified by David Arora.
The notion that brown gilled mushrooms are safe whereas white gilled mushrooms are not sounds like region-specific folk knowledge, and given the way mushroom species migrate and the existence of relatively rare mushrooms, I wouldn't count on it to be reliable anywhere in the world. Positive identification is the only safe way to select edible mushrooms, and as this article points out even that bears the risk of false identification, particularly if you aren't fully aware of what other similar species to check for.
I think this is just one of the Darwin award's new qualifying categories.
My favourite hot-and-sour soup is filled with a variety of funguses (well 2 or 3). Though these are not "found" mushrooms, they are different from the "common table mushrooms" that I believe you're talking about.
edit: This is the one that I bought at the farmer's market: http://www.specialtyproduce.com/produce/Abalone_Mushrooms_32...
Usually it's immigrants who die from death caps due to mistaken identity. The article is shocking to me because it involves a non-immigrant picking and eating mushrooms without expert knowledge: that's suicidal behavior.
For me, the flavors and textures are so varied, each suited to a different range of classic dishes, that saying common table mushrooms should suffice is the position of a philistine. I mean, bananas are tasty and plentiful, why bother with mango and papaya and passionfruit...
The "chicken of the woods" and "hen of the woods" are perfect starter mushrooms. (Although chickens' edibility when growing on softwoods is questioned, so it depends where you live.) There is nothing that bears any resemblance to them.
Chanterelles and porcini each have a few straightforward guidelines for distinguishing them.
Not saying I don't pick musrooms, only I only pick mushrooms I'm sure don't have any dangerous lookalikes.
There are many varieties that can be visually identified with very high confidence after only moderate practice. Fortunately morels fall into this category, they're delicious. It's true that there are mushrooms that can be confused with morels, but it's also true that it doesn't take all that much practice to understand the differences.
On the other hand there are many edible species which are unmistakeable and which you can quickly learn to reliably identify based on obvious features. In many European countries, foraging for wild mushrooms is a traditional pastime and intimately linked with national cuisine.
Anyways, never ever try out your luck with mushrooms, if you were not well-taught to deal with them by someone experienced, in person (internet advice / taking and sending m-room photos do not count, period).
Couple seasons of mushroom-hunting alongside someone, willing to teach you, is a minimum before you ever decide to put any mushroom you picked up yourself into your (or someone else's) mouth.
Btw, even experienced people sometimes do not pick up mushrooms, they have suspicions about (there are some not quite deadly ones here, masquerading as edible in my place, for example).