**Code**: [OS](https://sweetgum.nybg.org/science/ih/herbarium-details/?irn=125593) **Organization**: Ohio State University **Division**: Museum of Biological Diversity **Location**: Columbus, Ohio, U.S.A. **Total number of specimens**: 500000 **Current status**: Active **Date founded**: 1891 **Taxonomic coverage**: Vascular plants; bryophytes; diatoms worldwide; lichens; fungi; Asteraceae; Betulaceae **Geographic coverage**: North America (especially Ohio), Chile, and southern South America **Incorporated herbaria**: Ohio State University, Lima Campus, Ohio Agricultural Research and Development Center, OC (Ohio specimens, including fungi)., Antioch College **Important collectors**: L. M. Underwood, G. T. Jones, H. N. Moldenke, E. Hodge, A. Gray, E. D. Randolph, T. H. Kearney, W. A. Kellerman, J. H. Schaffner, C. L. Lesquereux, F. Hodge, H. H. Van Heurck, L. S. Hopkins, J. A. Duke, W. Meijer, A. D. Selby, T. F. Stuessy, H. L. Smith, W. S. Sullivant **Notes**: As of 2017, this record has not been updated in over 15 years. Botanical library of 20 000 volumes, including the personal collections of E. D. Rudolph and W. B. Cooke. Strengths include the history of botany, mycology (especially lichenology), horticulture, and southern South American floristics. **Date modified in Index Herbariorum**: 2018-02-06 > [!cite] This page is automatically generated • Data on this page were obtained from [Index Herbariorum](https://sweetgum.nybg.org/science/ih/) on 2023-08-23. • Meaning of acronyms in TL-2 is not always the same as in IH. Consult list of original [[Abbreviations|abbreviations]] if you suspect acronym mismatch.