Poroid fungi, commonly known as "polypores," are among the most frequently encountered fungi throughout the year because of their large size and longevity. Despite their common presence in North America, most fungi guides include only a limited selection of poroid fungi.

Poroid Fungi of North America offers a necessary, updated account of these fungi, building on the foundational work of the original two-volume North American Polypores by R. L. Gilbertson and L. Ryvarden. This comprehensive update incorporates more than three decades of new research, featuring detailed keys, descriptions, and vibrant color macrophotos, as well as illustrations of microscopic features.

Authored by renowned Norwegian mycologist Leif Ryvarden, co-author of the previous volumes and a series of regional guides to poroid fungi, this book reflects his extensive expertise, contributions, and dedication to the study of polypores. Richly illustrated, this volume fills a gap in mycological literature, offering a detailed guide for identifying poroid fungi.

Poroid Fungi of North America is an invaluable resource for a diverse audience, including amateur naturalists, professional mycologists, foresters, serious students, and nonspecialists.

Poroid Fungi of North America

Preface

Key to families and genera

Descriptions of genera and species

References

Index