William R. Graves, Ph.D., Dean of the Graduate College and Professor, at ​Iowa State University will discuss Dirca palustris, a noteworthy component of Huyck Preserve’s flora. Potluck at 6 p.m., lecture at 7 p.m. Every Thursday night starting July 13 for a scientific lecture series following a communal, potluck meal. Bring a dish to share. Registration is not required.