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. If you're curious about what fungi actually are and how they differ from plants and animals, be sure to visit our what are fungi? page for an easy-to-understand explanation.

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 you're new to mushroom identification, be sure to check out our mushroom identification basics guide for an easy introduction to key features and terminology.

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 Russula claroflava (Yellow Swamp Brittlegill). It grows in Europe, North America.

Dimensions: Cap 4-10 cm diameter, stem 4-10 cm tall * 1-2 cm thick

Description: Russula claroflava, also known as Yellow Swamp Brittlegill, is a brightly coloured agaric that has a convex to flat, vivid yellow cap. It grows with birch in very damp or boggy woodland.

Cap convex when young, becoming broadly convex or nearly flat with age. It's tacky to sticky when fresh, but dries quickly. The cap is bright yellow, which diminishes with age, and the margin becomes slightly lined. The skin can easily be peeled off halfway to the centre. The flesh is white and staining and aging slowly grey. Gills at first white, then creamy yellow but discolouring grey with age. Older ones can have grey or black edges, more or less free or reaching but not connected to the stem and fairly crowded. Stem is white, turns grey with age, more or less equal, fairly stout, and smooth. It has no ring. Spore print pale ochre-yellow.

Microscopic Features: Spores are ellipsoidal, measuring 8-9.5 x 6.5-8μm (excluding spines). They are ornamented with mainly-isolated blunt warts, reaching up to 0.6μm in height and connected by only a few lines.

Russula claroflava on the www.first-nature.com web site.
Russula claroflava on the MushroomExpert.Com web site.

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

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 can be lethally toxic. Distinguishing between edible and poisonous mushrooms can be very challenging. Therefore, we strongly advise against consuming wild mushrooms. This website 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, all content provided is for educational and informational purposes only and should not be relied upon or used as a basis for consuming any plants or mushrooms.