Psilocybe brasiliensis was discovered in Brazil, near Sao Paulo, for the first time by science in 1978 by the renowned mycologist Gaston Guzman. It is solely found among grasses and conifer forests, usually solitary on the ground; Axonopus compresus, Araucaria brasiliana (Parana Pine), and Podocarpus species are usually found nearby.
While rare in terms of science, their affinity for grasses likely makes this specie more widespread throughout Brazil. This could also make it a good candidate for outdoor cultivate in tropical environments, though the lack of spore availability online makes this uncommon at the moment.
While the activity of P. brasiliensis is currently unknown, the strong bluing reaction with damage and age implies a moderate to high quantity of active compounds. Their floury scent, and likely floury flavour to match, is common among Psilocybe and increases their edibility to activity ratio.
P. brasiliensis has features that are further similar to other Psilocybe mushrooms. It has a cap of 1-3 cm that is conic when young, progressing to convex or bell-shaped with age. This reddish-brown cap has translucent striations near the edge and is usually sticky or slippery when it’s wet.
The stipe is relatively short, 2-8 cm long and slender; it commonly has hairs or root-like structures (rhizomorphs) near the base. These features make it share visual similarities with other species of Psilocybe, namely P. cyanofibrillosa, P. wrightii, and P. caerulescens. The former shares the same overall shape, the latter two are closely related.
While little is known about P. brasiliensis due to its supposed rarity, it is likely more widespread than thought and could present a good candidate for outdoor cultivation in many parts of the world.
Guzmán G. (1978). “The species of Psilocybe known from Central and South America”. Mycotaxon. 7 (2): 225–255.