Tropicos
the largest plant database in the world from Missouri Botanical Gardens
A Guide to the Nehrling Collection at Rollins College Olin Library
A Short Biography from the University of Central Florida
Caribbean Gardens
The Zoo in Naples
Marie Selby Botanical Gardens, Sarasota
Florida Council of Bromeliad Society
Florida Nursery, Growers and Landscape Association
Top Tropicals
Rare Plants for Home and Garden
an article by Derek Butcher about Dr.Henry Nehrling
The Foundings of the Naples Gardens
a PDF document, requires Adobe Reader