Henkel, Terry W., Carol L. Kelloff, Sara N. Alexander, and Vicki A. Funk. Smithsonian Plant Collections, Guyana: 1992–2014, Terry W. Henkel. Smithsonian Contributions to Botany, number 104: vi + 206 pages, 23 figures, 8 maps, 4 plates, 1 table, 2016. — Part I provides the collector’s notes on trips with maps in chronological order. Part II lists collection localities, with collection number ranges, habitat descriptions, geographic coordinates, and assisting collectors. Part III lists collections in numerical order with identifications and authors. Part IV lists collections ordered by determined name.