Botanicus Digital Library

Botanicus is "a freely accessible, Web-based encyclopedia of digitized 18th and 19th century botanical literature from the Missouri Botanical Garden Library".

The encyclopedia currently includes over 147 titles, 988 volumes and over 502,000 pagesand you can subscribe to an RSS feed to alert you when new content is added. You can browse the collection by title, author or date of publication.

The images in these books, unless otherwise noted, are licensed under a Creative Commons Attribution-NonCommercial 2.5 License
meaning you can use them for your presentations, academic materials, non-profit publications, or non-profit web sites, provided you attribute them to the Missouri Botanical Garden.