Well, it's even worse than that. The amanita fruiting bodies are
generally large handsome clean-looking specimens with white gills.
the amanitatoxins, aka amatoxins,  (three major kinds usually present
together,) will often produce violent bloody diarrhea and vomiting
within 6 to 24 hours, lasting a day or so,followed by a period of
apparent recovery, which is then followed by a "relapse" and a 50%
mortality.
  
Unfortunately, people are often discharged from hospital during this
false recovery, only to die at home a few days later.  The primary
effects are on the liver and kidneys and occur within that first 6 to 24
hour period whilst the toxins are fully absorbed.  The moral to that is:
if you think someone has eaten a poison mushroom, don't wait around to
see if they'll be ok or not, get them to throw up, get to the emergency
room ASAP to get as much out of the system as possible before it is
absorbed and it's too late.  

Secondary effects involve everything else from the blood to the nerve
cells including the brain, by inhibiting RNA synthesis in the cells. One
to two ounces of the fresh fruiting body is, on average, enough to do
you in.  The poison content varies not only from variety to variety, but
from fruiting body to fruiting body.  One not-well-known therapy for
amanita poisoning is Thioctic Acid, injected; no guarantees.

  The other deadly class of mycotoxins is the Gryomitrins, which are
produced in rather small unappealing mushrooms unlikely to attract much
interest.  The difference between a completely inconsequential 'dose' of
gyromitrin and a deadly one is extremely small.  Gyromitrin hydrolyzes
into MMH, monomethylhydrazine, rocket fuel, an extremely carcinogenic
compound. Weird, huh?  Not a good way to launch into outer space.

Take care, Malcolm

On Tue, 2008-09-23 at 11:26 -0400, Marshall Dudley wrote:
> Check out the History channel, Modern Marvels: fungus. I watched it a 
> day or two ago, not sure if it will be running again. They have a pretty 
> good segment on mushrooms on that.  Interestingly if you eat a poisonous 
> mushroom, and get sick a few hours later you will probably be ok. If you 
> get sick 1 to 2 weeks later, you will most likely die.
> 
> Marshall
> 
> Smitty wrote:
> > (Google)
> > I get very few but beautiful looking mushrooms growing
> > in our backyard. I do love raw, sliced mushroom on a salad
> > that I buy fresh from a supermarket.
> > So I ask.....the mushrooms that grown in our backyard .....
> > are they safe to eat..?
> > ~~~~~~~~~~~~~~~~~~
> > I remember many years ago reading a very sad story
> > whereas almost an entire Asian-American family out in
> > California died from eating mushrooms picked fresh from their backyard.
> > ~~~~~~~~~~~~~~
> > Check mushroom pictures on Google and try and compare.
> > But people can and do get SICK from eating those "yard mushrooms".
> > Beware.
> > __________________
> > Eating mushrooms that have been collected outdoors
> > can be a risky proposition.  Many poisonous mushrooms look
> > and taste like ones that are safe to eat, and there is no
> > simple way to differentiate between the two.
> > Heating or cooking does not necessarily destroy the toxic
> > parts of the mushroom.
> >
> > Smitty
> >
> >   
> >> Hey G!   Your're right.  Thanks, I now have a name for them.  They are
> >>     
> >  Ugly,
> >   
> >> Ugly Ugly.  The neighbor had been trying to eliminate them for more  then
> >>     
> >  a
> >   
> >> year...  nothing worked!  Then I had the solution; Colodial Silver.  But
> >>     
> >  it
> >   
> >> did not work.  Not sure if I should have just poured it on them instead of
> >> adding to the Revive.  Hope someone on here has an answer.
> >> connie
> >>     
> >
> >
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> >   
> 
>