There are more than 10,000 types of fungi growing around the world. Some of these fungi produce above-ground reproductive organs – what we call mushrooms. According to mycologists, there are likely thousands more species of fungi that have yet to be discovered.

All fungi fit into one of four categories, which have to do with how the fungi feed themselves and reproduce.

Saprotrophic Mushrooms
release enzymes and acids that promote decomposition, so they’re often found on decaying plants, wood, and animal feces. The decomposition process is what feeds these mushrooms, which is why they’re so essential to our ecosystem.

Most edible mushrooms used in cooking are the reproductive bodies of saprotrophic fungi. While the majority of the fungi expand in a large network of cells underground or within decaying organic matter, they need to release their spores into the outside environment in order to spread and reproduce.

Mushrooms serve this purpose by releasing spores into the environment, which can be carried by the wind or animals to new locations. Common edible saprotrophic mushrooms include shiitake, white button, morel, and oyster mushrooms.

Mycorrhizal Mushrooms
Unlike saprotrophic mushrooms, mycorrhizal mushrooms grow by weaving themselves into the roots of trees and other types of plants. This gives moisture and nutrients to the plants, while the mushrooms eat the sugars produced by the vegetation. Porcini mushrooms are likely the most commonly eaten mycorrhizal fungi. Some varieties never come above ground, making these fungi harder to find and observe.

For example, one of the most expensive mushrooms in the world – the White Truffle – is a type of mycorrhizal mushroom. These mushrooms grow symbiotically with oak, poplar, hazel, and beech trees. Essentially, mycorrhizal mushrooms break down nutrients for the tree and the roots of the tree provide the mushroom with sugar in a mutually beneficial relationship.

The prized “white truffle” is simply the underground reproductive body created by the network of fungi surrounding the roots of these trees. Because they are hard to see, many truffle hunters train pigs to find the mushrooms by scent to help locate and unearth these tasty fungi!

Parasitic Mushrooms
Parasitic fungi grow similarly to mycorrhizal mushrooms, but the relationship is really only beneficial to the mushroom because they will eventually infect and kill their host. While these fungi are not necessarily valuable as an edible species, they can serve a number of valuable functions for humans.

For example, the company Fungi Perfecti has patented cultures of a mushroom specifically designed to infect and kill an invasive ant colony. Unlike harsh chemicals and poisons normally used to eradicate these pests, parasitic mushrooms have evolved to infect only certain species of ants and are completely harmless to humans and other organisms!

Endophytic mushrooms
are also invasive in a parasitic way, but instead of killing their host, they deliver nutrients and help combat harmful pathogens. This is the least studied type of fungi, and many researchers believe that some types of saprotrophic and parasitic mushrooms could actually be endophytic.

Most Common Varieties of Edible Mushrooms

These mushrooms are the most commonly used culinary mushrooms. They are not psychedelic or dangerous in any way, and all are packed with nutrients and boast plenty of health benefits. Be sure to read our page on the health benefits of mushrooms to discover the many reasons why fungi are an important part of the human diet.

White Button / Cremini / Portobello
While all three of these mushroom types are marketed with different names in the grocery store, they are actually all just varieties of the same species – Agaricus bisporus.

White button mushrooms are the most common type of mushroom consumed in the world.  White button mushrooms are a pure-white variety, which you’ll often find sliced in the grocery store. Cremini mushrooms are browner in color than the white buttons, plus their texture is meatier and their flavor is more robust. They are often sold as “baby bellos”. Portobellos are simply the full-grown version of a Cremini, and they make a great burger replacement!

 

Shitake
Shiitake mushrooms are most common in Japanese cuisine, but you can find them in stores all over the world. They have a thinner stem than the cremini family and often come in dried form for cooking (or eating as a snack). Plus, shiitake mushrooms have been found to have powerful effects on the immune system and may reduce the risk of certain cancers.

Morel
Morel mushrooms are the wrinkly wild mushrooms that look like a tiny brain on a stick. They are harder to cultivate in large quantities, so they’re typically found in the wild rather than at the grocery store. They taste similar to shiitake, with a stronger, more nutty flavor.

Oyster
Oyster mushrooms have a thicker stem and a smaller cap than other types of mushrooms. They’re also one of the chewiest varieties. Oyster mushrooms are a commonly foraged mushroom because they have no poisonous doppelgangers, so it’s almost always a safe choice.

Porcini
Porcini mushrooms are a common ingredient in Italian cuisine. They are brown to reddish-brown in color, and harder to cultivate because of their mycorrhizal growth in the roots of plants. The spongy caps and thick stems have a rich and robust flavor, especially when dried. Dried porcini can easily be added to soups, pasta, and other recipes to enhance flavor.

Lion’s Mane
Lion’s Mane mushrooms are commonly consumed as supplements due to their high nutritional profile, but also have a rich taste that many chefs love to use in their cooking. As long as the strands and inner meat of the lion’s mane mushroom are white, it is considered safe to eat.

They are commonly found in the wild between August and November and are easily identified by their shaggy white mane. Unlike everything else on this list, Lion’s Mane mushrooms have no cap. Instead, they have small “teeth-like” strands that fasten them to their host.

Lion’s Mane
Lion’s Mane mushrooms are commonly consumed as supplements due to their high nutritional profile, but also have a rich taste that many chefs love to use in their cooking. As long as the strands and inner meat of the lion’s mane mushroom are white, it is considered safe to eat. They are commonly found in the wild between August and November and are easily identified by their shaggy white mane. Unlike everything else on this list, Lion’s Mane mushrooms have no cap. Instead, they have small “teeth”-like strands that fasten them to their host.

Most Common Types of Psychedelic Mushrooms

Psychedelic, psilocybin-containing mushrooms are not used for cooking, and their flavor is nowhere near as delicious as the above-mentioned mushrooms. However, the psilocybin and related mind-altering compounds in these mushrooms have been used in many ancient and modern societies as a way to expand the mind.

Before choosing the type of psychedelic mushroom you’re going to consume, be sure to read our page on the effects of shrooms and what to expect when you trip. Further, many psilocybin-containing mushrooms are illegal in a number of countries. Please ensure that you understand the laws in your region before obtaining or taking any psychedelic mushrooms or substances.

Safety First! The importance of mushroom identification.

As you are reading these descriptions and potency measurements, keep in mind that these features are averages and subject to variation. Not only does psilocybin content vary wildly between individuals of the species, but misidentifying a mushroom species can be a potentially deadly mistake. Studies have found up to a tenfold difference in potency in mushrooms picked right next to each other. In other words, the averages reported below can be very different from the actual content in a single mushroom. So, start slow and add later if you need.

Worse yet, improper identification of some mushroom species can lead to the ingestion of a species that contains potentially deadly toxins. If not properly treated, the toxins can lead to the life-threatening effects of internal bleeding and related symptoms.

The information here is not inclusive of all physical aspects of the mushrooms that may be important for accurate identification. These are simply broad-stroke features of various species. To learn more about safe and effective identification, proper dosage, and the science behind psychedelic mushrooms, consult Psilocybin Mushrooms of the World by expert mycologist Paul Stamets.

A Note on Potency

All potency information is reported directly from the Stamets book, and are measured on a mushroom’s dry weight. Fresh mushrooms have a much higher weight due to the water. Some mushrooms can be nearly 90% water, so this can drastically change the dosage. Dosage is a complex subject, with many factors involved. Your weight and health can drastically affect the dosage, as well as your personal sensitivity to psychoactive substances.

Common Shroom Varieties

Psilocybe cubensis – “Magic Shrooms”

Psilocybe Cubensis is the most well-known type of psychedelic mushroom due to how easy it is to cultivate and distribute. Often a small, reddish cinnamon brown mushroom as juveniles, but going through a variety of color changes as they mature. This species of psychedelic mushroom is commonly known as magic shrooms, golden cops, cubes, or gold caps.

Active Contents
Psilocybin – 0.63%
Psilocin – 0.60%
Baeocystin – 0.025%
Total – 1.255% 

Psilocybe semilanceata – “The Liberty Cap”

Liberty caps are some of the most potent and widely distributed psychedelic mushrooms. They grow in wet, grassy areas and are known for their bell-shaped cap that with a pointed protrusion in the middle. The caps grow to about an inch in diameter and are typically yellow and brown in color.

This is the type of mushroom that Albert Hoffman, the Swiss scientist who first synthesized LSD, first chemically analyzed to understand its psychedelic properties. He found about 0.25% psilocybin by weight in dried liberty cap samples. However, values as high as 2.37%. This makes the Liberty Cap one of the most potent psychoactive mushrooms.

Active Contents
Psilocybin – 0.98%
Psilocin – 0.02%
Baeocystin – 0.36%
Total – 1.36%

Psilocybe azurescens – “The Flying Saucer Mushroom”

Psilocybe Azurescens is the most potent psychedelic mushroom on this list, as they often contain more than 2% psilocybin, psilocin, and baeocystin by dry weight. They look similar to liberty caps, both of which are frequently found in the Pacific Northwest region of the United States.

With their highly uniform edges, they certainly do resemble a flying saucer. Plus their caramel color and thick mucous covering make them seem like something from out of this world. It has also been noted that this species holds its potency particularly well when dried.

Active Contents
Psilocybin – 1.78%
Psilocin – 0.38%
Baeocystin – 0.35%
Total – 2.51%

Panaeolus cyanescens

Panaeolus cyanescens psychedelic mushrooms are some of the smallest of the bunch, with their caps coming in around 1.5-4 centimeters in diameter. But, that doesn’t mean that these mushrooms don’t pack a punch! Growing in Hawaii, Louisiana, and Florida, this species is widespread through the tropics of the world. Just because this mushroom grows in dung doesn’t mean it stinks. This mushroom is very similar to Panaeolus tropicalis, which is also quite potent.

Active Contents
Psilocybin – 0.85%
Psilocin – 0.36%
Baeocystin – 0.03%
Total – 1.24%