Fungi 101

Before you spot a single mushroom cap, an entire hidden kingdom is already at work beneath the forest floor. We begin by breaking down the core biology and identification groups that help you recognize fungi in the field.
This call starts with the basics of fungal biology and the major identification groups used in the field. Participants will learn how to recognize agarics, boletes, polypores, puffballs, jellies, cups, and other common forms through clear photos and simple diagnostic features. From there, the program moves into fungal ecology—how fungi decompose wood, form symbiotic partnerships with plants, and build the underground networks often called the wood‑wide web. The class concludes with a nod to fungi’s cultural and practical significance: edible species, poisonous lookalikes, and the medicinal and biochemical compounds that have shaped human history, from penicillin to modern psychedelic research.
An optional outdoor foray extends the learning as the class practices real‑world identification.
About the speaker: William Needham is a Maryland Master Naturalist and past president of the Mycological Association of Washington, DC. He has extensive field experience, contributes to regional hiking and nature groups, and co‑authors guides for the Potomac Appalachian Trail Club. His books include The Compleat Ambler and The Green Nuclear Option, which examines nuclear energy’s role in reducing carbon emissions.
Payment and Cancellation Policy: Payment is due online at the time of registration. Cancellations made 14 or more days in advance of the event will receive a refund minus a 5% processing fee. Cancellations made within 14 days of the event will not receive a refund. Events and field trips with fees of $25 or less are non-refundable at any time unless canceled by NHSM. NHSM retains the right to update or change these requirements at any time.