Recognizing Pan Cinctulus: A Quick Guide

Panaeolus cinctulus, commonly known as the weed panaeolus, is a psilocybin mushroom with a long history of human use. It was first discovered in the 1860s in England and has since been found worldwide, growing in compost piles, lawns, and gardens. This mushroom is known for its black spore print, which is a key distinguishing feature when identifying P. cinctulus in the wild. Other look-alike species include Panaeolus foenisecii, which has a brownish-black spore print, and Panaeolus papilionaceus, which has frilly partial veil fragments around the edge of its cap. When identifying P. cinctulus, it is essential to consider the mushroom's native environment, growth patterns, and spore colour, as these can help rule out similar-looking species.

Panaeolus cinctulus is a small brown mushroom with a black spore print

Panaeolus cinctulus, commonly known as the banded mottlegill, is a small brown mushroom with a black spore print. It is a widely distributed psilocybin mushroom species that can be found in many regions worldwide, including North America, South America, Europe, Africa, Asia, and Oceania.

The pileus or cap of P. cinctulus is typically 4-5 cm broad at maturity, although it can sometimes range from 1-8 cm. The shape can be hemispherical to convex, and it often has a central, rounded hump. The colour of the cap can vary from dark red-brown to flesh-brown, cinnamon-brown, or even grey-beige, and it usually has a darker belt zone around the margin. As the mushroom matures, the cap can fade to tan or whitish.

The lamellae or gills of P. cinctulus are close together and brownish, mottled, or grey-brown to black-grey in colour. The edges of the gills remain whitish, but turn blackish when fully mature. The stipe or stem is reddish, becoming darker towards the base, and is approximately 50-60 mm long and 2-4 mm thick. It is brittle, hollow, and fibrous.

P. cinctulus grows in grassy areas, especially those that are well-kept and fertilized. It can often be found on compost piles, lawns, and in gardens, and occasionally directly on horse dung. It grows from spring to fall, especially after rainfall. This species is commonly mistaken for other psilocybin mushrooms, such as Panaeolus fimicola, due to their similar appearances and preferred habitats. However, P. fimicola can be distinguished by the presence of sulphidia on its gill faces.

It grows on compost piles, well-fertilised lawns, gardens, and occasionally on horse dung

Panaeolus cinctulus, also known as the banded mottlegill, weed panaeolus, belted panaeolus, or subbs, is a very common, widely distributed psilocybin mushroom. It is a cosmopolitan species, meaning it grows all around the world. It has been found in the USA in all 50 states and on every continent except Antarctica.

P. cinctulus grows on compost piles, well-fertilised lawns, gardens, and occasionally on horse dung. It grows from spring to fall, abundantly after rain. It can be found in patches, either as many single mushrooms or in little clumps. The newer the lawn, the better the chances of finding P. cinctulus there. After a few months or a year, the patch will absorb all the nutrients from the lawn or garden, and they won't appear again unless more nutrients are introduced.

P. cinctulus is a little brown mushroom. It has a cap that is 1.5–5.5 centimetres wide, hemispherical to convex when young, and broadly umbonate or plane in age. The outer band is usually darker. The flesh is cinnamon-brown to cream-coloured and thin. The gills are close, adnate to adnexed, cream-coloured when young, later mottled dingy brown, and then soot-black.

P. cinctulus can be distinguished from similar mushrooms by its jet-black spore print. Panaeolus foenisecii, which also grows on lawns, has lighter stems and a dark brown (not black) spore print. Panaeolus papilionaceus grows in the same habitat but can be distinguished by partial veil fragments around the edge of the cap that look frilly or like small teeth. Panaeolina foenisecci, another look-alike, has thinner stems that are white or tan, smaller caps, and brown gills.

It is often mistaken for Panaeolus foenisecii, which has a dark brown spore print

Panaeolus cinctulus is often mistaken for Panaeolus foenisecii, a similar-looking mushroom that grows in the same habitats. P. foenisecii is smaller and has a dark brown spore print, whereas P. cinctulus has a jet black spore print. The stems of P. foenisecii are lighter, with white or tan stems, while P. cinctulus has darker stems, often with a reddish tint and striations, sometimes in a spiral pattern. The gills of P. foenisecii also drop below the cap margin, which does not occur in P. cinctulus.

P. foenisecii grows in similar habitats to P. cinctulus, including lawns, compost piles, and fertilized grass. It is important to distinguish between these two mushrooms as P. cinctulus is known for its intoxicating properties, while P. foenisecii is non-intoxicating. Although no human deaths have been recorded from consuming P. cinctulus, it can cause symptoms such as nausea and difficulty carrying out work. On the other hand, consuming P. foenisecii may be unsafe, with reports of people becoming sick after ingestion. Therefore, if you are unsure about the identification of these mushrooms, it is best to avoid consuming them.

To accurately identify P. cinctulus and distinguish it from P. foenisecii, it is recommended to examine the spore print. P. cinctulus will have a jet black spore print, while P. foenisecii will have a dark brown spore print. If the spore print is not jet black, it is advisable to discard the mushrooms. Additionally, examining the physical characteristics of the mushrooms can aid in identification. P. cinctulus typically has darker stems with reddish tints and striations, while P. foenisecii has lighter, white or tan stems. The gills of P. foenisecii will drop below the cap margin, which is not a characteristic of P. cinctulus.

It is important to exercise caution when identifying and consuming wild mushrooms. If you are unsure about the identification of P. cinctulus or P. foenisecii, it is recommended to seek expert advice or refrain from consuming them to prevent any potential health risks.

It is also similar to Panaeolus fimicola, P. olivaceus, and P. papilionaceus

Panaeolus fimicola, also known as the "turf mottlegill", is a rarely identified "little brown mushroom" that can be found growing in soil, dung, fertilised lawns, and other grassy places. It is widespread and common across the Americas, Europe, Africa, and Turkey. It often appears during or after cold rain. Panaeolus fimicola contains small amounts of the hallucinogen psilocybin.

Panaeolus olivaceus is another rarely identified "little brown mushroom" that is often mistaken for Panaeolus fimicola and P. cinctulus. It is distinguished by its slightly roughened spores, black spore print, and darker gill coloration when mature. It grows scattered to gregariously in rich grassy areas, from late summer through December, across North and South America, and has also been found in the United Kingdom, Canada, New Zealand, and other countries.

Panaeolus papilionaceus, commonly known as Petticoat mottlegill, is a very common and widely distributed "little brown mushroom" that feeds on dung. It is the type species for the genus Panaeolus. Panaeolus papilionaceus is considered inedible and does not contain psilocybin. It can be distinguished from P. cinctulus by the presence of partial veil fragments around the edge of the cap that look frilly or like small teeth.

It is commonly known as Weed Panaeolus, Banded Mottlegill, and Red Caps

Panaeolus cinctulus, commonly known as Weed Panaeolus, Banded Mottlegill, or Red Caps, is a small, widespread mushroom species. It was first discovered in the 1860s in a grassy field in Apethorpe, England, and has since been found all over the world, in Asia, South America, North America, Europe, and Australia. It is a cosmopolitan species, growing in compost piles, on lawns that are rich in fertilizer, and occasionally on the dung of animals such as horses. It grows from spring to fall, and abundantly after rain.

P. cinctulus is characterised by robust basidiomes, a hygrophanous cap often displaying red-brown zoning, the absence of chrysocystids, and a tendency to grow in clusters. The cap is typically 1.5–5.5 centimetres, hemispherical to convex when young, and broadly umbonate or plane when mature. The mushroom is smooth, hygrophanous, and a striking cinnamon-brown when moist, turning soot-black when wet. It has a dark band around the cap margin in wet conditions.

P. cinctulus is often found alongside P. papilionaceus, P. retirugis, and other coprophilous species in ruminant enclosures. It is distinguished by its dark spore print, which is jet black, although the spores of Panaeolus foenisecii are dark brown. P. foenisecii is a similar species that also grows on lawns, but can be distinguished by its lighter stems and dark brown (not black) spore print. P. cinctulus can also be mistaken for P. papilionaceus, which grows in the same habitat but has partial veil fragments around the edge of the cap that look frilly or like small teeth.

P. cinctulus is mildly psychoactive and contains the psychoactive compounds psilocybin, psilocin, and baeocystin, which are responsible for its psychedelic effects. While it is considered inedible and toxic, no human deaths have been recorded from consuming this mushroom. The few descriptions of accidental ingestion report symptoms that appear consistent with a magic mushroom experience, including nausea, difficulty carrying out work, and a sharpening of the senses. It is important to note that consuming wild mushrooms carries significant risks, including toxicity and misidentification.

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