The NHA herbarium comprises approximately 200,000 specimens (120,000 vascular plants, 80,000 marine algae, and 550 bryophytes and lichens). The collection contains a combination of historic and recently collected specimens, including 97 nomenclatural type specimens and voucher specimens supporting taxonomic, ecological, and biogeographic research. While our specimens represent plant species worldwide, the collections emphasize northeastern North America and are especially strong in representing freshwater and marine habitats. An additional strength is our extensive collection of Neotropical aquatic species.

GBIF url: https://www.gbif.org/dataset/b42c906d-28ef-4456-8fd6-d13d34bd50a7
Citation: University of New Hampshire Nature History Collections (2026). Albion R. Hodgdon Herbarium, University of New Hampshire. Occurrence dataset https://doi.org/10.15468/5wne5z accessed via GBIF.org on 2026-08-07.