University of Maryland Herbarium

University of Maryland Herbarium
Name	University of Maryland Herbarium
Established	1920s
Location	College Park, Maryland
Holdings	~300,000 specimens
Director	[to be updated]
Website	[to be updated]

University of Maryland Herbarium

The University of Maryland Herbarium is a major North American botanical collection housed at the University of Maryland, College Park campus in College Park, Maryland. It serves as a regional center for vascular plant, bryophyte, and fungal systematics, supporting research tied to institutions such as the Smithsonian Institution, National Museum of Natural History (United States), United States Department of Agriculture, Maryland Department of Natural Resources, and regional herbaria like George Washington University Herbarium, Harvard University Herbaria, New York Botanical Garden. The herbarium contributes specimens and data used by projects involving United States Geological Survey, Environmental Protection Agency, National Oceanic and Atmospheric Administration, Plant List, and international efforts like Global Biodiversity Information Facility, Consortium of Midwest Herbaria, and Biodiversity Heritage Library.

History

The herbarium traces roots to early 20th-century collections connected with the Maryland Agricultural Experiment Station, the College of Agriculture and Natural Resources (University of Maryland), and fieldwork by faculty affiliated with Smithsonian Institution expeditions and the Chesapeake Bay Program. Its growth was shaped by exchanges with the Field Museum, Missouri Botanical Garden, and private donors tied to legacies like Asa Gray correspondence and exchanges similar to those of John Torrey and Charles Darwin networks. During the mid-20th century, wartime and postwar botanical surveys coordinated with the United States Fish and Wildlife Service and National Park Service expanded holdings through regional floristic projects, paralleling initiatives at Yale University Herbarium and University of Michigan Herbarium.

Collections

The holdings include approximately 300,000 accessioned specimens encompassing vascular plants, bryophytes, lichens, fungi, and preserved DNA samples. Significant collections derive from floristic surveys of the Chesapeake Bay watershed, the Appalachian Mountains, the Delmarva Peninsula, and urban flora of Washington, D.C. There are historical type specimens and regional types donated via correspondence with collectors associated with Asa Gray, John Muir-era networks, and 19th–20th century botanists who collaborated with institutions like the Royal Botanic Gardens, Kew, Botanical Research Institute of Texas, and Missouri Botanical Garden. Specimen metadata are digitized to standards used by Global Biodiversity Information Facility, Integrated Digitized Biocollections, and taxonomic backbones such as International Plant Names Index.

Research and Publications

Research at the herbarium supports systematic treatments, monographs, and faunal-floral syntheses published in venues like Systematic Botany, Madroño, Rhodora, Journal of the Torrey Botanical Society, and contributions to regional floras analogous to the Flora of North America project. Staff and affiliates collaborate on phylogenetic studies employing methods from groups at Harvard University Herbaria, Kew Gardens research programs, and molecular laboratories similar to those at Smithsonian Institution and Cold Spring Harbor Laboratory. The herbarium contributes data to conservation assessments conducted with partners such as NatureServe, IUCN, The Nature Conservancy, and local entities like Maryland Biological Conservation initiatives and state natural heritage programs.

Facilities and Curation

Specimens are housed in climate-controlled cabinets with curation practices aligned with standards from the American Society of Plant Taxonomists, Society for the Preservation of Natural History Collections, and museum protocols used at National Museum of Natural History (United States). Digitization workflows follow pipelines established with the Consortium of Herbaria and imaging collaborations seen at New York Botanical Garden and Royal Botanic Gardens, Kew. The facility includes processing labs, a molecular sampling suite modeled on capabilities at Smithsonian Institution labs, and secure storage for type material paralleling practices at Field Museum and Missouri Botanical Garden.

Education and Outreach

The herbarium supports undergraduate and graduate curricula in departments such as Department of Biology (University of Maryland, College Park), Entomology and Plant Pathology analogs, and programs linked with Smithsonian Institution internships and the Maryland Native Plant Society. Outreach includes public workshops, specimen identification events in partnership with National Capital Parks-East, citizen science initiatives tied to iNaturalist, and collaborative programs with regional schools, botanical gardens such as United States Botanic Garden, and museum education offices like those at the National Geographic Society.

Notable Staff and Directors

Past and present staff have included curators and botanists who collaborated with prominent figures and institutions like Asa Gray-era correspondents, researchers affiliated with Smithsonian Institution, and systematists publishing alongside colleagues at Harvard University Herbaria, Kew Gardens, and Missouri Botanical Garden. Directors and senior curators have chaired sessions at societies such as the Botanical Society of America, Canadian Botanical Association, and contributed to standards committees for the International Association for Plant Taxonomy and regional conservation coalitions including The Nature Conservancy.

Access and Specimen Use Policies

Specimen loans, imaging requests, and research visits follow policies consistent with best practices at major collections like New York Botanical Garden, Harvard University Herbaria, and Smithsonian Institution. Access requires adherence to loan agreements modeled on Society for the Preservation of Natural History Collections recommendations, material transfer agreements paralleling National Institutes of Health guidelines for genetic resource use, and data-sharing protocols compatible with Global Biodiversity Information Facility and Biodiversity Heritage Library norms. Researchers coordinate with institutional offices comparable to those at University of California, Berkeley and Cornell University for permits, compliance, and specimen handling.

Category:Herbaria in the United States Category:University of Maryland, College Park