Psilocybe aztecorum
£104.40 – £1,000.50
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Psilocybe aztecorum
Psilocybe aztecorum is a species of psilocybin mushroom in the family Hymenogastraceae. Known from Arizona, Colorado, central Mexico, India and Costa Rica, the fungus grows on decomposing woody debris and is found in mountainous areas at elevations of 2,000 to 4,000 m (6,600 to 13,100 ft), typically in meadows or open, grassy conifer forests.
The mushrooms have convex to bell-shaped caps 1.5–2 cm (0.6–0.8 in) in diameter, atop slender cylindrical stems that are up to 7.5 cm (3.0 in) long. The color of the caps changes with variations in hydration, ranging from dark chestnut brown to straw yellow or whitish when dry.
The base of the stem is densely covered with conspicuous white rhizomorphs, a characteristic uncommon amongst Psilocybe species.
The species was first reported by French mycologist Roger Heim in 1956 as a variety of Psilocybe mexicana before he officially described it under its current name a year later.
Named for its association with the Nahua people also called Aztecs, P. aztecorum may have been one of the sacred mushroom species, or teonanácatl (A Nahuatl word translated variously as “sacred mushroom” or “flesh of the gods”), reported in the codices of 16th-century Spanish chronicler Bernardino de Sahagún. The mushrooms are still used for spiritual ceremonies by Nahua people in the Popocatépetl region, although this traditional usage is waning.
The variety P. aztecorum var. bonetii has smaller spores than the main variety, and is found at lower elevations with Montezuma pine (Pinus montezumae) and sacred fir (Abies religiosa). P. aztecorum may be distinguished from similar temperate species such as P. baeocystis and P. quebecensis by their ranges, and by differences in the morphology of microscopic structures like cystidia.
Description
The cap is convex to bell-shaped, sometimes developing a broad umbo before expanding and flattening in age; it reaches a diameter of 1.5–2 cm (0.6–0.8 in). In maturity, the cap eventually forms a central depression, and, in some old specimens, opens into the hollow stem.
The cap surface is slimy to the touch, and has translucent striations along the margin when moist. The cap is strongly hygrophanous, meaning that it will change color depending on its level of hydration. The color ranges from yellowish brown to golden yellow in young button forms to brownish gray in age, with greenish-gray tints on the margin.
The color later changes to whitish from the center to the margin, finally remaining completely white; dried specimens are straw-colored to pale brownish. In contrast to most psilocybin mushrooms, the cap of P. aztecorum does not have a strong bluing reaction upon injury—only the margin stains slightly green-blue.[1]
A young specimen with prominent rhizomorphs at the stem base, a silky-fibrillose stem surface, and a cobweb-like partial veil covering the gills
The gills are adnate (broadly attached to the stem slightly above the bottom of the gill) or adnexed (reaching the stem, but not attached to it), and are light violet gray to dark violet brown. They are either uniform in color, or have whitish edges.
The hollow stem is 5.5 to 7.5 cm (2.2 to 3.0 in) by 3 to 4 mm (0.12 to 0.16 in) thick, equal in width throughout or thicker at the top, cylindric or sometimes flattened, and either straight or with turns and windings. Its surface is smooth, silky-fibrillose, whitish to greyish, and stains blue-green irregularly when touched or in age. The base of the stem is densely covered with well-developed white rhizomorphs.
Young mushrooms have a white cobweb-like partial veil that does not last long before it disappears, although it sometimes remains as a non-permanent ring on the upper part of the stem. The flesh is whitish to yellowish or reddish yellow in the cap, or reddish brown in the stem, and shows little or no bluing reaction to injury. Like most of the bluing Psilocybe mushrooms, the odor and taste of P. aztecorum is slightly farinaceous (similar to freshly ground flour) in fresh specimens; dried specimens have a more intense odor.
A drop of dilute potassium hydroxide (KOH) stains the cap, stem, and flesh reddish brown; sometimes, the stem does not stain or stains slightly yellowish red. The spore print is blackish violet
| Quantity | 14g, HP, LB, OZ, QP |
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