MONTHLY FEATURE: Psilocybe cf. antioquiensis : Siem Reap, Cambodia Spore Syringe

Spore Works Lab Monthly Feature: on the first of every month the Spore Works Lab will releases a limited quantity of mushroom spore or culture material from rare, interesting, and exotic varieties. These represent the ongoing efforts of our dedicated team towards collection, taxonomy, and species/strain development, and are offered at a discount to encourage further investigation. Your patronage ensures the continued research and development of these wonderful mushroom varieties, thank you for your support. Quantities are limited, as new features will be announced and rotated each month.

Psilocybe cf. antioquiensis (P. angkoria sp. nov.): Siem Reap, Cambodia

Spores provided in sterile aqueous solution using 10cc BD Luer-Lok syringes. One 1.5in 16ga needle will be provided for each spore filled syringe.

Habitat: Sandy soil in manured ground
Climate: Tropical

Strain Origin: Siem Reap, Cambodia, John Allen Collection, August 2003

Cap: 5-10 mm in diameter, convex expanding to broadly convex to nearly plane with age. Dry, bruising bluish green.

Stem: 50+ mm in length. Typically equal, sometimes slightly enlarged at base, sometimes contorted.

Gills: Attachment adnate to adnexed. Grayish coloration in young fruit bodies becoming darker with spore maturity.

Spores: Dark purplish brown

Comments: Initially proposed as the new species Psilocybe angkoria sp. nov. (Sihanonth and Allen) in 2003. it was later “identified” as P. antioquiensis by Dr. Gaston Guzman. P. antioquiensis was formerly reported from Mexico and South America and the identification of the Cambodian material is now suspect. The holotype from Columbia has yet to be genetically sequenced, but based on published microscopy, it is likely a synonym of P. mexicana (Section Mexicanae). The material offered here was sequenced and is the equivalent of sample “Allen C” in Section Zapotecorum. Without the holotype sequence for a direct comparison for species confirmation, we will label this sample as Psilocybe cf. antioquiensis. It is likely an undescribed species and may go back to its originally proposed name of P. angkoria which we don’t think was ever actually published.

Although laboratory specimens resemble P. mexicana, P. antioquiensis has not been observed to form sclerotia and is not closely related.

References:

Guzman, G., Saldarriaga, Y., Pineda, F., Garcia, G., & Velazquez, L. F. (1994). New species of Psilocybe from Colombia and discussion on the known species. Mycotaxon, 51, 225–235.

Guzmán, G., Allen, J. W., & Sihanonth, P. (2006). Distribution of the Hallucinogenic Mushroom Psilocybe antioquensis (Agaricomycetideae) in Colombia, Mexico, and Cambodia. International Journal of Medicinal Mushrooms, 8(1), 85–89.

John Allen Cambodian collection ITS sequence.

Photos of John Allen collection (PDF).

* Spores intended for microscopy and taxonomy purposes only. Images provided for informational and educational reference only and originate from cultivators and labs outside the US. Cultivation of this species is illegal in many countries including the United States. Please check your local regulations.

California, Idaho, and Georgia residents: Orders requesting Psilocybe Genera Spores shipped to California, Idaho, and Georgia will be refused, voided, or refunded. Possession of these mushroom spores may be illegal in CA, ID, and GA without the proper permissions.