The L. H. Bailey Hortorium Herbarium (BH) at Cornell University is one of the largest university-affiliated collections of preserved plant material in North America. It includes Cornell's Wiegand Herbarium (CU), which was merged with BH in 1977. The combined herbaria now number ca. 860,000 specimens of algae, bryophytes, and vascular plants.

Synopsis of BH

Cornelius H. Muller
Oak Collection

The Palm

The Bryophyte

The Hortorium Herbarium is back in its home in Mann Library.  Herbarium operations have resumed and loan requests may be sent to for processing.   Our new mailing address is:  Bailey Hortorium Herbarium, Dept. of Plant Biology, 412 Mann Library Bldg., Cornell University, Ithaca, NY 14853.  We can be contacted by email at or by telephone at (607) 255-1052 or (607) 255-0443.  Please see the Visitor Information page below for directions to our location.

About the Herbarium:                             Other Resources:

Special Projects:

Copyright 1999-2010
L. H. Bailey Hortorium, 412 Mann Library Bldg.
Cornell University, Ithaca, NY 14853
phone (607) 255-1052 or 255-0443, fax (607) 255-5407

Website created by S. Vance, R. Dirig, E. Cope, & K. Nixon
    with assistance from J. Svitko
Last modified: March 2010