A database of nearly 2 millon herbaria specimen images from around the world. Some special collecton materials such as Carl Linneaus's annotated editions of Species Naturae and illustrations from Curtis's Botanical Magazine.
A good complement to BIOSIS Previews searches. Use Yale Fulltext links and note "Cited by" numbers. Not all Yale libraries' online content is reflected in Yale Fulltext links; search Orbis manually for other items of interest.