A person in a bucket hat bends down to retrieve a plant from a pond on a sunny day

Advancing Floristic Knowledge and Conservation for Northeastern North America

May 7, 2025

5–6 p.m. | Online

The New Manual Project

More than 30 years ago, former New York Botanical Garden scientist Arthur Cronquist updated the Manual of Vascular Plants of Northeastern United States and Adjacent Canada, original authored by Cronquist and his Garden colleague Henry Gleason. This masterful update of their original 1963 publication served as a continuation to the long lineage of manuals by NYBG authors, including Founding Director Nathaniel Lord Britton. Staying true to this long-standing tradition, Robert Naczi, Arthur Cronquist Curator of North American Botany, is spearheading the revision and expansion of Gleason and Cronquist’s Manual. In this webinar, Rob will provide an overview of the New Manual project, a progress report, and a review of how the project is advancing plant systematics and conservation.



About the Speaker

Robert Naczi, Ph.D., is the Arthur Cronquist Curator of North American Botany at NYBG’s Center for Biodiversity and Evolution.

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