Field Guide

Mushrooms

Showing 1 - 10 of 61 results
Photo of wood ear mushroom, which looks like a brownish human ear stuck to a log
Wood Ear (Tree Ear)
Auricularia auricula (formerly A. auricula-judae)
The wood ear is a reddish brown to grayish black, rubbery, earlike or cup-shaped mushroom. It usually grows in groups on rotting wood.
Photo of pale jelly roll fungus, showing small specimen.
Pale Jelly Roll
Exidia alba (Ductifera pululahuana)
Pale jelly roll is a small, white, gelatinous fungus with an irregular shape. It looks like a brain, or like jelly — or both! It grows in clusters on dead wood of deciduous trees.
Photo of witches' butter, a yellow gelatinous bloblike fungus
Witches’ Butter
Tremella mesenterica
Witches' butter is a fungus that looks like small, yellow, irregularly lobed, gelatinous masses. It grows on dead deciduous wood, especially oaks.
Photo of young, golden cluster of ringless honey mushrooms on forest floor
Ringless Honey Mushroom
Desarmillaria caespitosa (formerly Armillaria tabescens)
The ringless honey mushroom is honey-colored, with a dry, scaly cap, and lacks a ring on the stalk. It grows in clusters at the bases of trees or stumps, especially of oaks, and over buried wood.
Photo of mica cap cluster, bell-shaped, brown, capped mushrooms
Mica Cap
Coprinellus micaceus (formerly Coprinus micaceus)
The mica cap has a bell-shaped, tawny brown, radially lined cap and inky gills. It grows in clusters around stumps or on wood debris.
Photo of orange pinwheel marasmius, tiny, orange, pleated, gilled mushroom
Orange Pinwheel Marasmius
Marasmius siccus
The orange pinwheel marasmius is a tiny mushroom with an orange, bell-shaped, pleated cap, white gills, and a skinny brownish stalk. It grows scattered to many on dead leaves, wood, and twigs of deciduous trees.
Photo of rooted collybia, tan, thin-stalked gilled mushroom
Rooted Collybia
Xerula furfuracea (Collybia radicata var. furfuracea)
The rooted collybia has a moist, wrinkled, grayish brown flat cap and a long, slender stalk that continues underground. It grows singly or scattered on and around deciduous trees and stumps.
a row of little brown, umbrella-shaped mushrooms along a decaying log
Little Brown Mushrooms
Various species of confusingly similar mushrooms
Like the LGBs (“little gray birds”) of the birdwatchers, this is a catchall category. It includes all the small to medium-sized, hard-to-identify brownish mushroom with spores of all colors. There are many hundreds of species that fit this description!
Photo of oyster mushrooms growing on a tree trunk
Oyster Mushroom
Pleurotus ostreatus and P. pulmonarius
Oyster mushrooms are choice edibles with broad, fleshy, whitish, grayish, or tan caps and a stubby, off-center stalk. They grow clustered on stumps, logs, and trunks.
Photograph of a cluster of devil's urn mushrooms, which are brown and gobletlike
Devil's Urn
Urnula craterium
Devil's urns are goblet-shaped, leathery brown cups. They grow in clusters on small to medium-sized decaying branches of hardwoods, especially oaks. Look for them in spring.
See Also
Photo of several pinesap plants showing multiple flowers per stalk.
Pinesap (False Beech Drops)
Monotropa hypopitys
Pinesap is a plant that puts the "wild" in wildflower! It lacks chlorophyll, so its roots connect to fungi underground and absorb nutrients from the fungi.
Picture of a patch of filamentous green algae floating in a stream.
Filamentous Green Algae (Pond Scum)
Cladophora, Pithophora, and Spirogyra spp., and others
Filamentous green algae forms green, cottony masses that are free-floating or attached to rocks, debris, or other plants.
Photo of several Indian pipe plants with flowers, rising out of leaf litter.
Indian Pipe
Monotropa uniflora
Indian pipe lacks chlorophyll, so it is white, not green. Below ground, its roots join with fungi that connect to tree roots. This plant, then, takes nourishment indirectly from the trees.

About Mushrooms in Missouri

Mushrooms are a lot like plants, but they lack chlorophyll and have to take nutrients from other materials. Mushrooms are neither plants nor animals. They are in a different kingdom — the fungi. Fungi include the familiar mushroom-forming species, plus the yeasts, molds, smuts, and rusts.

Always be cautious when eating edible mushrooms. Be absolutely sure of the ID, and only eat a small amount the first time you try it to avoid a reaction..