355 titles (books/journals)
1,823 volumes
841,331 pages
165,705 links to protologues
Recent additions 
Botanicus is a freely accessible, Web-based encyclopedia of historic botanical literature from the Missouri Botanical Garden
Library. Botanicus is made possible through support from the W.M. Keck Foundation and the Andrew W. Mellon Foundation.
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- J. G. Cottae.
- Jacobum Mascardum.
- Jacquin, Nikolaus Joseph,
- Jaeger, August,
- Janssonio-Waesbergios.
- Jaume Saint-Hilaire, Jean Henri,
- Jean Anisson.
- Jo. Jacobi Palmii.
- Jo. Martyn and Ja. Allestry.
- Joannes Catuffe.
- Johan. Edman.
- Johann Christian Dieterich.
- Johannes le Mair.
- Johannes Thoma.
- Johansson, Johannes
- John and Francis Rivington.
- John Nourse.
- Josephi Kurtzböck.
- Josephi Michaelis Gerold.
- Juel, H. O.
- Jung, J. J.
- Jung, Joh. Jacob.
- Junghuhn, Franz Wilhelm,