Internet Directory for Botany—Worldwide directory to herbaria, gardens, natural history museums, and other sites of interest to botanists.
Index Herbariorum edition 8 database.—Directory of institutional herbaria.
DELTA: Descriptive Language for Taxonomy—Describes a standardized machine-readable language for taxonomic description and the generation of interactive keys. Includes descriptions for flowering plant families.
International Code of Botanical Nomenclature—Tokyo Code, adopted 1993.
Royal Botanic Garden, Kew —Index to Families and Genera
Gray Herbarium Card Index—Citations of names for New World vascular plants.
International Plant Names Index—a single web database which combines citation data for seed plants from Index Kewensis, the Gray Herbarium Card Index, and the Australian Plant Names Index.
Index Nominum Genericorum—Worldwide coverage for generic names of "all organisms covered by the International Code of Botanical Nomenclature."
Missouri Botanical Garden—Features information on Garden events, the MBG Library, MBG Press, and access to the Garden's W3 TROPICOS nomenclatural database.
University of North Carolina Herbarium
CB# 3280, Coker Hall
University of North Carolina
Chapel Hill, NC 27599-3280
phone: (919) 962-6931
email: herbarium@bio.unc.edu