Psilocybe mexicana „A“

Psilocybe mexicana „A“ Heim 1957



Psilocybe mexicana grows solitary to gregarious in meadows, often in horse pastures and in soils rich in manure. It is most common at 1000-1800 m in elevation. This species is found in June through September in subtropical Mexico.
This species was highly sought after for years because of it's sclerotia forming abilities. The two mexicana strains we sell were originally brought into circulation by Sporeworks.

On sterilised grass seed, rice and millet the 'A' strain produces large sclerotia, hardened mycelial structures that contain psilocybin and psilocin. Sclerotia usually enlarge until about 3 months after inoculation after which they can be harvested.
Mushroom production is limited and few mushrooms can be harvested. However, large sclerotia form in the casing soil of fruiting trays. If you are interested in growing mushrooms of the Psilocybe mexicana we recommend you look at the 'B' strain.
The 'B' strain does not produce sclerotia in uncased substrates, only in the casing layer of fruiting trays. This strain does produce massive flushes of mushrooms.
The mycelium of the 'A' strain forms typical rings of sclerotia on malt extraxt agar. Sclerotia can be planted and mushrooms can form directly from them.
In our standard jars with 110 grams of grass seed and 180 ml of water it produces an average of 90 grams fresh weight in 3 months. This species can also be succesfully grown in autoclavable spawnbags.

Experiments have yet to determine the optimal substrate for this strain but so far grass seed, millet and rice have proven to be useful. Undoubtly there are more substrates that support sclerotia formation better than those three.

source - www.mushmush.nl

Pictures at www.mushroomobserver.org

Growth parameters:

Substrate:
Sterilised grass seed, millet and rice.
Temperature:
colonisation/fruiting: 24-27°C / 22-24°C
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