Conocybe
Conocybe is a genus of small, delicate mushrooms, many with slender stems and cone-shaped or bell-shaped caps. Species grow in varied places, including lawns, pastures, and other grassy habitats. The genus includes species with very different properties, so appearance alone cannot establish whether a mushroom is safe.
- Group
- A genus of mushrooms
- Typical look
- Small caps, slender stems
- Habitats
- Grass, soil, dung, wood
- Safety
- Some species are highly toxic
- Key caution
- Never eat an unidentified wild mushroom
What is Conocybe?
Conocybe is a genus of gilled mushrooms in the family Bolbitiaceae. Many members are modest in size, with fragile stems and caps that start out conical or bell-shaped. Their colors and proportions vary between species and can change as a mushroom matures. The genus is found in many parts of the world, but telling its members apart often requires more than a quick look at a photograph.
The name combines Greek roots meaning “cone” and “head,” a reference to the shape seen in many caps. Conocybe tenera is the type species, the species used to anchor the genus name. Taxonomists have revised the boundaries of Conocybe over time, moving some mushrooms into related genera. As a result, names and groupings in field guides or online sources may not always match older references.
- 1Spore release
A mature mushroom releases microscopic spores from its gills.
- 2Germination
In suitable conditions, a spore grows into fine fungal threads.
- 3Mycelium spreads
Hyphae form a network within soil or organic material.
- 4Fruiting begins
The fungus develops a visible cap, stem, and spore-bearing gills.
- 5Spores disperse
Spores move away from the gills, continuing the life cycle.
How does Conocybe form?
Like other mushrooms, a Conocybe fungus begins its growth from microscopic spores. In suitable surroundings, a spore can germinate and produce fine threads called hyphae. These threads form a network, or mycelium, in soil or other organic material. Much of the fungus lives out of sight; the visible mushroom is a short-lived structure that produces and releases spores.
When conditions support it, the underground or hidden mycelium develops a fruiting body. Its cap expands, exposing gills where spores form, while the stem raises the cap above the ground or nearby material. Wind and other natural forces can carry spores away. This is a general mushroom life cycle, not a calendar or a reliable way to predict when a particular Conocybe species will appear.
Many species have cone-shaped or bell-shaped caps, though forms vary.
Grassy places are common, but species also grow on other materials.
Reliable species identification may require microscopic features.
Editorial placement to help compare; not a measurement.
Where do people encounter Conocybe?
Conocybe mushrooms are often noticed in grassy places such as lawns and pastures. Depending on the species, they may grow from soil, decaying plant matter, dung, or other organic material. Some appear among moss or in sandy habitats. Their small size and delicate build mean they can be overlooked, but several may also appear together where conditions suit them.
The genus matters to naturalists because it contributes to the variety of fungi living in everyday landscapes. Some species break down organic material, returning nutrients to the environment. People may also encounter Conocybe while looking for edible mushrooms or learning about psychoactive fungi. That overlap makes careful, species-level identification important: the genus includes mushrooms with very different chemical and safety profiles.
| Conocybe | Galerina | Bolbitius | |
|---|---|---|---|
| Group | Genus in Bolbitiaceae | Related gilled-mushroom genus | Related gilled-mushroom genus |
| Common setting | Often grassy places | Varies by species | Often grassy or organic matter |
| Possible look | Small, delicate, conical caps | Can resemble small brown caps | Can resemble delicate gilled mushrooms |
| Safety note | Includes toxic species | Some species are poisonous | Do not identify by appearance alone |
Are Conocybe mushrooms dangerous?
Yes, some are dangerous. Conocybe filaris contains amatoxins, including alpha-amanitin, and can cause life-threatening poisoning. Other species in the genus have been reported to contain psilocybin and psilocin. These facts do not make a mushroom identifiable by its effects or appearance, and an unfamiliar specimen should never be treated as safe based on a name, photo, or resemblance.
Conocybe can be confused with other small, brown, gilled mushrooms, including Galerina and Bolbitius. Specialists may compare features such as spore details and cap-cell structure under a microscope, but visual clues alone are not a dependable safety test. Never eat a wild mushroom without expert identification. If someone may have eaten a poisonous mushroom, contact emergency services or poison control promptly.
- 1889
Fayod published the name Conocybe tenera, now the genus's type species.
- 1958
A book by Heim and Wasson documented Mazatec use of Conocybe siligineoides.
- 2013
A phylogenetic study examined relationships and classification within the mushroom family Bolbitiaceae.
- 2022
Researchers published an analysis of tryptamine alkaloids in psychotropic mushrooms.
How is Conocybe connected to other mushroom topics?
Conocybe connects to basic mushroom anatomy: its cap, gills, and stem are visible parts of a fruiting body, while hyphae and mycelium make up much of the living fungus. Spores are involved in reproduction. Learning these terms can help explain how field guides describe mushrooms, but knowing anatomy does not by itself confirm a species or determine whether it is edible.
The genus also appears in discussions of psychoactive mushrooms and toxic lookalikes. In the United States, psilocybin is federally classified as a Schedule I substance. Regulated state programs offer supervised access in Oregon and Colorado; New Mexico's medical program is being set up. Laws can change, and state programs do not make wild-mushroom collection safe or legal. Check current rules and rely on qualified experts for identification.
Common questions about Conocybe
What does a Conocybe mushroom look like?
Many Conocybe mushrooms are small and fragile, with slender stems and cone-shaped or bell-shaped caps. Their colors and shapes vary, and these features can overlap with those of other small, gilled mushrooms. A general description or photograph is not enough to confirm a species.
Is Conocybe filaris poisonous?
Yes. Conocybe filaris contains amatoxins, including alpha-amanitin, and is a highly dangerous mushroom. Do not handle identification as a matter of guesswork, and never eat a wild mushroom without expert identification. If ingestion may have occurred, seek emergency help or contact poison control right away.
Do all Conocybe mushrooms contain psilocybin?
No. Only some species have been reported to contain psilocybin and psilocin; other Conocybe species have different properties, including serious toxicity. The genus name alone cannot tell you what compounds a mushroom contains. Do not attempt to identify or consume wild mushrooms based on psychoactive claims.
Is Conocybe legal in the United States?
Psilocybin is federally Schedule I in the United States. Oregon and Colorado have regulated state programs for supervised access, and New Mexico's medical program is being set up. Laws and program rules can change, so check current official sources. These programs do not make wild mushroom collection or consumption safe.
Related terms
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Written by the Pscilly editorial team and reviewed November 2026. Educational content only, not medical or legal advice. Pscilly does not sell psilocybin. Never eat a wild mushroom without expert identification.