[ Natural History ]
Ascomycete Fungi of North America
A Mushroom Reference Guide
By Michael Beug, Arleen Bessette, and Alan E. Bessette
With more than 850 color photographs and more than 600 described species, as well as an easy-to-use color key to aid visual identification, this is the most complete guide ever published to North American Ascomycetes, which include morels and truffles.