dosage for PESA shrooms
psilocybe in mexico
Ls Sagarmatha Seeds 1061 Pm19 subcubensis and Panaeolus
cyanescens. It is unknown if a tourist in Thailand
has ever been sentenced for usage or possession
of mushrooms. In addition to the collection of
fruiting bodies growing naturally on buffalo
dung, Thai as well as German residents on Koh
Samui and Koh Pha-ngan began to cultivate the
mushrooms, outdoors and inside houses. In
accordance with the "natural cultivation"
approach, rice debris was added to fresh manure
and mixed with dung already permeated by
mycelia. After prohibition, mushroom cultivation
continued at hard-to-reach wilderness locations.
Moreover, Allen found evidence that
some restaurants temporarily served dishes made
from regular table mushrooms apparently spiked
with a synthetic hallucinogen (LSD?) whose
effects lasted much longer than those of
psilocybin. This dangerous practice caused
unexpected reactions with effects lasting for up to
10 hours. Some consumers experienced
dysphoric side effects which persisted for as long
as several days. One individual developed an
aversion against all kinds of mushroom dishes for
several months.
As in Mexico during the sixties, a large
variety of mushroom images and products are
marketed commercially in Thailand these days.
Among merchandise offered for sale there are
hand-painted and mass-produced T-Shirts (see
Figure 56, p. 78) with pictures of Panaeolus
cyanescens and Psilocybe subcubensis, shown
together as well as separately, not to mention
postcards, posters, lighters and key rings, all
featuring mushroom-motif decorations. Allen
reported that such goods are available in both
Northern and Southern Thailand.
In coming years, we can well expect a
wealth of new discoveries and insights into the
ethnopharmacology, taxonomy and natural
chemistry of Asia's mycoflora.
Not surprisingly, another new mushroom
species was discovered in Thailand in August,
1991 and named Psilocybe samuiensis Guzman,
Bandala & Allen (see Figure 60, p. 99). The
species is similar in appearance to Psilocybe
semilanceata, but the fruiting bodies do not
contain baeocystin. Psilocybe samuiensis is a
bluing species that grows on fertilized soil, but
not directly on top of dung. We successfully
cultivated this species on a mixture of rye, horse
dung and water (2:1:2), but found that we needed
to add a casing layer consisting of peat and chalk
(2:1).
CHAPTER 8
SOME COMMENTS ON EFFECTS OF MUSHROOMS FROM
THE CATEGORY PHANTASTICA
Extensive animal research efforts during
the 1950s furnished evidence that both psilocybin
and psilocin are alkaloids of negligible acute
toxicity. Specifically, the dosage of
psilocybin that caused death in 50% of the
experimental mice (LD 50) was determined to be
280 mg/kg body weight. By comparison, noticeable
effects in humans generally occur at dosages as low
as 0.02 mg/kg.
Animal tests showed that, on average,
psilocybin was a substance only half as toxic as
mescaline, and at the same time, turned out to
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