Nomenclatural Databases

Botanical Garden, Kew

Vascular Plant Families and genera, Authors of Plant Names, DNA Database

TROPICOS

Missouri Botanical Garden nomenclatural database and associated authority lists

Index Nominum Genericorum

National PLANTS Database Project

International Plant Name Index

Flora of North America

Specimen Databases

Harvard University Herbaria Type Specimens

California Academy of Sciences Type Specimens

New York Botanical Garden Type Specimens

University of Florida Herbarium

University of Texas Herbarium Type Specimens

Smithsonian Institution Type Specimens (US National Herbarium Type Specimen Register)