Welcome to Mushroom World

Step into the fascinating world of mushrooms with Mushroom World - your go-to resource for fungi information. Our site is a comprehensive resource offering information and stunning images of mushrooms mainly found in Europe and North America.

Since there are thousands of known species of mushrooms, we have tried to limit those we list to the most common ones. New species are also continuously added to the site.

So come on in and explore the wonders of mushrooms with us. We hope you find our site informative, inspiring, and a valuable resource on your journey of mushroom discovery.

Below is an overview of the main features and functionalities of our site.

Browse the database

You can browse the database from the alphabetical list or search the database based on mushroom names or properties.

Help identify a mushroom

If you know the characteristics of a mushroom but need help identifying it, try using our mushroom identification helper. It is a tool designed to assist you in identifying mushrooms that you may come across.

If this site cannot help you, we recommend mushroomobserver.org, a community site for mushroom identification. There are also many Facebook groups for mushroom identification, like the public Mushroom Identification group.

Identification Quiz

We have also created a quiz where you can test your fungi identification knowledge. You can repeat the quiz as many times as you want, each time with new questions.

Upload mushroom pictures

If you have pictures of mushrooms you would like to have included on our site, please use the upload form to upload these files and we will see if we can include them.


Today's Mushroom

Today's mushroom is Tapinella atrotomentosa (Velvet Rollrim). It grows in North America, Europe, Central America and Asia.

Dimensions: Cap 12-28 cm diameter, stem 3-9 cm tall * 2-5 cm thick

Description: Tapinella atrotomentosa, also known as Paxillus atrotomentosus or Velvet Rollrim, is a large or massive agaric with a brown cap, buff gills, and a dark brown, velvety, sometimes eccentric stem. The mushroom grows singly or in groups or clumps on decaying conifer logs, stumps, roots, or partially buried wood.

Cap initially broadly convex, later flat or shallowly vase-shaped, dry, densely to finely velvety, brownish yellow to yellow-brown or reddish-brown in youth, typically darkening with age. Margin initially inrolled, often developing wide scalloping in maturity. The flesh is thick and firm and whitish to yellowish coloured. Gills decurrent (running down the stem), cream-yellow and forked, becoming ochre and spotted rust with age. Stem equal or occasionally swollen in the middle, sometimes off-centre or even lateral, thick and sturdy, whitish near the top but velvety brown to blackish-brown fuzz covers the lower part. The stem has no ring. Spore print sienna-brown.

Microscopic Features: The spores are ellipsoidal, smooth, measuring 5-6 x 3-4.5┬Ám.

Synonyms: Paxillus atrotomentosus is an older name.

Tapinella atrotomentosa on the First Nature Web site.
Tapinella atrotomentosa on the MushroomExpert.Com Web site.

This site contains no information about the edibility or toxicity of the mushroom.

 Tapinella atrotomentosa  Tapinella atrotomentosa

If you are interested in this mushroom, look it up in our database. You can find more detailed pictures there.

Many mushrooms are poisonous and some are lethally poisonous. It can be very difficult to distinguish between an edible and a poisonous mushroom. Because of that, we strongly advise against consuming wild mushrooms, and this site does not contain any information about the edibility or toxicity of mushrooms.

Although efforts have been made to ensure accuracy on this website, the information may contain errors and omissions. Therefore, the information presented here is for informational purposes only and should not be relied upon as any basis for consuming any plants or mushrooms.

Links to external websites that provide information about mushrooms are included for reference purposes only. We do not endorse, or assume responsibility for the information, content, or recommendations provided on these external sites.