John Culliney, professor of biology and contributing author of the natural history of Kawai Nui, will give a free botanical lecture tonight from 7 to 8:30 p.m. at Faith Baptist Church at 1230 Kailua Road, next to the Windward YMCA.

The lecture will be followed by a tour of the marsh from 8:30 a.m. to 12:30 p.m. tomorrow with Rick Barboza, co-owner of a native plant nursery, discussing native plant restoration sites in the marsh.

A $10 donation is requested for the tour, which is limited to 30 people. Call 263-8008 or e-mail email@ahahui.net to reserve a place.