John H Wiersema
National Germplasm Resources Laboratory
Botanist
Phone: (301) 504-9181
Fax: (301) 504-5810
Room 124
BLDG 003
10300 BALTIMORE BLVD
BLDG 003 BARC-WEST
BELTSVILLE, MD 20705
Publications
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will take you to the publication reprint.)
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Report on corrections and future considerations for Appendices II–VIII of the International Code of Nomenclature for Algae, Fungi, and Plants
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(Peer Reviewed Journal)
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Wiersema, J.H., May, T.W., Turland, N.J. 2017. Report on corrections and future considerations for Appendices II–VIII of the International Code of Nomenclature for Algae, Fungi, and Plants. Taxon. 66:772-775.
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A new weed in Florida, Spermacoce latifolia, and the distinction between S. alata and S. latifolia (Spermacoceae, Rubiaceae)
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(Peer Reviewed Journal)
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Wiersema, J.H., Delprete, P.G., Kirkbride, J.H., Franck, A.R. 2017. A new weed in Florida, Spermacoce latifolia, and the distinction between S. alata and S. latifolia (Spermacoceae, Rubiaceae). Castanea. 82:114-131.
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Synopsis of proposals on botanical nomenclature – Shenzhen 2017: A review of the proposals concerning the International Code of Nomenclature for algae, fungi, and plants submitted to the XIX International Botanical Congress
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(Peer Reviewed Journal)
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Turland, N.J., Wiersema, J.H. 2017. Synopsis of proposals on botanical nomenclature – Shenzhen 2017: A review of the proposals concerning the International Code of Nomenclature for algae, fungi, and plants submitted to the XIX International Botanical Congress. Taxon. 66:217-274.
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Nomenclature notes on Phoebe chekiangensis (Lauraceae)
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(Peer Reviewed Journal)
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Yang, Y., Zhu, X., Wiersema, J.H. 2017. Nomenclature notes on Phoebe chekiangensis (Lauraceae). Taxon. 66:165-166.
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(364) Proposal to provide a more direct definition of the term “gathering”
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(Peer Reviewed Journal)
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Wiersema, J.H. 2016. (001) Proposal to provide a more direct definition of the term “gathering”. Taxon. 65:1186.
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(390) Proposal to preclude homonymy of generic names with names of intergeneric graft-hybrids (chimaeras)
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(Peer Reviewed Journal)
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McNeill, J., Shaw, J.M., Wiersema, J.H. 2016. (000) Proposal to preclude homonymy of generic names with names of intergeneric graft-hybrids (chimaeras). Taxon. 65:1198-1199.
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(385-388) Proposals to amend Art. 32.2, 23.5, and 24.2 to clarify the treatment of transcribed Greek terminations of epithets
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(Peer Reviewed Journal)
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Wiersema, J.H., Gandhi, K.N. 2016. (001–002) Proposals to amend Art. 32.2, 23.5, and 24.2 to clarify the treatment of transcribed Greek terminations of epithets. Taxon. 65:1195-1196.
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Correcting the type designations of Caryodaphnopsis baviensis and C. laotica (Lauraceae)
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(Peer Reviewed Journal)
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Sun, T., Wiersema, J.H., Yang, Y. 2016. Correcting the type designations of Caryodaphnopsis baviensis and C. laotica (Lauraceae). Phytotaxa 270:227-230.
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(001–003) Proposals relating to the valid publication of new combinations, names at new rank, and replacement names (Art. 41)
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(Peer Reviewed Journal)
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Greuter, W., Wiersema, J.H., Turland, N.J. 2016. (334-336) Proposals relating to the valid publication of new combinations, names at new rank, and replacement names (Art. 41). Taxon 65:911-912.
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(001) A proposal relating to infraspecific names (Art. 24)
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(Peer Reviewed Journal)
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Greuter, W., Turland, N., Wiersema, J.H. 2016. (321) A proposal relating to infraspecific names (Art. 24). Taxon 65:905-906.
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(001–008) Some proposals to resolve problems relating to the conservation or rejection of names, suppression of works, and binding decisions
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(Peer Reviewed Journal)
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Wiersema, J.H., Greuter, W., McNeill, J. 2016. (234-241) Some proposals to resolve problems relating to the conservation or rejection of names, suppression of works, and binding decisions. Taxon 65:642-646.
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(000) A proposal concerning the valid publication of suprageneric “autonyms”
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(Peer Reviewed Journal)
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Wiersema, J.H., Greuter, W. 2016. (262) A proposal concerning the valid publication of suprageneric “autonyms”. Taxon 65:652.
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(20-22) Proposals to add Gerard, FL gallo-Prov. 1761, Kramer, Elench. Veg. 156, and Miller, Gard. Dict. Abr. ed. 4 1754 to the list of suppressed works in Appendix VI
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(Peer Reviewed Journal)
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Wiersema, J.H., Gandhi, K.N. 2016. Proposals to add Gerard, FL gallo-Prov. 1761, Kramer, Elench. Veg. 156, and Miller, Gard. Dict. Abr. ed. 4 1754 to the list of suppressed works in Appendix VI. Taxon. 65(3):638-639.
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Origins of food crops connect countries worldwide.
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(Peer Reviewed Journal)
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Khoury, C.K., Achicanoy, H.A., Bjorman, A.D., Navarro-Racines, C., Guarino, L., Flores-Palacios, X., Engels, J.M.M., Wiersema, J.H., Dempewolf, H., Sotelo, S., Ramirez-Villegas, J., Castaneda-Alvarez, N., Fowler, C., Jarvis, A., Rieseberg, L.H., Struik, P.C. 2016. Origins of food crops connect countries worldwide. Proceedings of the Royal Society B 283:20160792. DOI:10.1098/rspb.2016.0792.
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The Melbourne Code Appendices: announcing a new approach for tracking nomenclatural decisions and a analysis of the history of nomenclatural proposals
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(Abstract Only)
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The foundation of the Melbourne Code Appendices: Announcing a new paradigm for tracking nomenclatural decisions
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(Peer Reviewed Journal)
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Wiersema, J.H., McNeill, J., Turland, N.J., Orli, S.S., Wagner, W.L. 2015. The foundation of the Melbourne Code Appendices: Announcing a new paradigm for tracking nomenclatural decisions. Taxon 64: 1021-1027.
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The GRIN-Taxonomy Crop Wild Relative Inventory. Pp 453-457 in Maxted, N., Mulloo, M.E., Ford-Lloyd, B.V. Enhancing crop genepool use: capturing wild relative and landrace diversity for crop improvement
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(Proceedings)
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Wiersema, J.H., Leon, B. 2016. The GRIN-Taxonomy Crop Wild Relative Inventory. Pp 453-457 in Maxted, N., Mulloo, M.E., Ford-Lloyd, B.V. Enhnacing crop genepool use: capturing wild relative and landrace diversity for crop improvement. CABI(Council of Applied Biology International, Oxford, United Kingdom. 453-457.
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Collecting crop wild relatives: an emerging priority
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Greene, S.L., Khoury, C., Williams, K.A., Wiersema, J.H., Kinard, G.R. 2015. Collecting crop wild relatives: an emerging priority. Meeting Abstract. National Native Seed Conference, Santa Fe, NM April 10-13, 2015.
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International Code of Nomenclature for Algae, Fungi, and Plants (Melbourne Code): Appendices II-VIII
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Wiersema, J.H., McNeill, J., Turland, N.J., Barrie, F.R., Buck, W.R., Demoulin, V., Greuter, W., Hawksworth, D.L., Herendeen, P.S., Knapp, S., Marhold, K., Prado, J., Prud’Homme Van Reine, W.F., Smith, G.F. 2015. International Code of Nomenclature for Algae, Fungi, and Plants (Melbourne Code): Appendices II-VIII. Regnum Vegetabile 157:1-492.
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Proposal to conserve the name Viola blanda Willd. against Viola blanda Salisb. (Violaceae)
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(Peer Reviewed Journal)
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Choo, T., Gandhi, K., Wiersema, J.H., Jarvis, C., Reveal, J. 2014. Proposal to conserve the name Viola blanda Willd. against Viola blanda Salisb. (Violaceae). Taxon. 63:690-691.
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The GRIN-Taxonomy crop wild relative inventory
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(Abstract Only)
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Application of the name Lemna punctata G. Mey., the type of Landoltia Les & D. J. Crawford
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(Peer Reviewed Journal)
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Wiersema, J.H. 2014. Application of the name Lemna punctata G. Mey., the type of Landoltia Les & D. J. Crawford. Plant Biology. http://onlinelibrary.wiley.com/doi/10.1111/plb.12209/full.
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International Seed Testing Association List of stabilized plant names, edition 6
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Wiersema, J.H. 2014. International Seed Testing Association List of stabilized plant names, edition 6. International Seed Testing Association Handbook. http://www.seedtest.org/upload/cms/user/Stab_List_Ed_61.pdf.
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An inventory of crop wild relatives of the United States
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(Peer Reviewed Journal)
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Khoury, C., Greene, S.L., Wiersema, J.H., Maxted, N., Jarvis, A., Struik, P.C. 2013. An inventory of crop wild relatives of the United States. Crop Science. 53:1496-1508.
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World Economic Plants: a standard reference, 2nd ed
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Wiersema, J.H., Leon, B. 2013. World Economic Plants: a standard reference, 2nd ed. Boca Raton, FL: CRC Press. 1300 p.
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International Code of Nomenclature for Algae, Fungi, and Plants
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McNeill, J., Turland, N.J., Barrie, F.R., Buck, W.R., Greuter, W., Wiersema, J.H. 2012. International Code of Nomenclature for Algae, Fungi, and Plants. Konigstein, Germany: Koeltz Scientific Books. 208 p.
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(1) Request for a binding decision on whether Ferdinanda (Compositae) and Ferdinandea (Rubiaceae) are sufficiently alike to be confused
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(Peer Reviewed Journal)
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Kirkbride, J.H., Wiersema, J.H., Delprete, P.G. 2012. (1) Request for a binding decision on whether Ferdinanda (Compositae) and Ferdinandea (Rubiaceae) are sufficiently alike to be confused. Taxon. 61(2):479.
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Proposals to reject the names Spermacoce stigosa and S. hyssopifolia Sm. and conserve the names S. hyssopifolia Wild. Es oem. & Schult. (Rubiaceae)
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(Peer Reviewed Journal)
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Kirkbride, J.H., Wiersema, J.H., Delprete, P.G. 2012. Proposals to reject the names Spermacoce stigosa and S. hyssopifolia Sm. and conserve the names S. hyssopifolia Wild. Es oem. & Schult. (Rubiaceae). Taxon. 61(2):475-476.
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Identifying wild relatives of subtropical and temperate fruit and nut crops
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(Proceedings)
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Wiersema, J.H., Leon, B., Garvey, E.J. 2012. Identifying wild relatives of subtropical and temperate fruit and nut crops. Acta Horticulturae. 948:285-288.
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Validation of the name Wolffia borealis (Lemnaceae)
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(Peer Reviewed Journal)
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Gandhi, K., Wiersema, J.H., Brouillet, L. 2012. Validation of the name Wolffia borealis (Lemnaceae). Harvard Papers in Botany. 17:47-50.
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(1947-1958) Proposals to reject twelve names emanating from Loefling's Iter Hispanicum (1758), Ayenia sidiformis (Malvaceae), Cofer (Symplocaceae), Cruzeta and C. hispanica (Amaranthaceae), Edechia inermis and E. spinosa...
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(Peer Reviewed Journal)
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Dorr, L.J., Wiersema, J.H. 2010. (1947-1958) Proposals to reject twelve names emanating from Loefling's Iter Hispanicum (1758), Ayenia sidiformis (Malvaceae), Cofer (Symplocaceae), Cruzeta and C. hispanica (Amaranthaceae), Edechia inermis and E. spinosa.... Taxon. 59(4):1280-1282.
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American vascular plants published in Loefling’s Iter Hispanicum (1758) and its German translation(1766)
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(Peer Reviewed Journal)
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Dorr, L., Wiersema, J.H. 2010. American vascular plants published in Loefling’s Iter Hispanicum (1758) and its German translation(1766). Taxon. 59(4):1245-1262.
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Proposal to conserve the name Thaspium (Umbelliferae/Apiaceae)
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(Peer Reviewed Journal)
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Reveal, J.L., Gandhi, K.N., Wiersema, J.H. 2009. Proposal to conserve the name Thaspium (Umbelliferae/Apiaceae). Taxon 58(3): 14.
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Biogeography of Nymphaeales: Extant patterns and historical events.
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(Peer Reviewed Journal)
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Lohne, C., Yoo, M., Borsch, T., Wiersema, J.H., Wilde, V., Bell, C.D., Barthlott, W., Soltis, D.E., Soltis, P.S. 2008. Biogeography of Nymphaeales: Extant patterns and historical events. Taxon 57(4):1123-1146.
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Nuclear and plastid DNA sequences reveal complex evolutionary patterns in Australian water-lilies (Nymphaea subgenus Anecphya, Nymphaeaceae)
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(Peer Reviewed Journal)
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Lohne, C., Borsch, T., Jacobs, S.W.L., Hellquist, C.B., Wiersema, J.H. 2008. Nuclear and plastid DNA sequences reveal complex reticulate patterns in Australian water-lilies (Nymphaea subgenus Anecphya, Nymphaeaceae). Australian Systematic Botany. 21(4):229-250.
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Proposal to reject the name Juglans alba (Juglandaceae), thereby retaining the name Carya tomentosa
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(Peer Reviewed Journal)
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Ward, D.B., Wiersema, J.H. 2008. (1807) Proposal to reject the name Juglans alba (Carya alba)(Juglandaceae). Taxon. 57(1):308-310.
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ISTA List of Stablized Plant Names, ed. 5
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Wiersema, J.H. 2007. ISTA list of stablized plant names, ed. 5. International Seed Testing Association. 73 pp.
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Proposal To Conserve The Name Zinnia Elegans Against Z. Violacea (Compositae)
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(Peer Reviewed Journal)
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Kirkbride, J.H., Wiersema, J.H. 2007. Proposal to conserve the name Zinnia elegans against Z. violacea (Compositae). Taxon. 56(3):958-959.
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THE NOMENCLATURE OF SORGHUM BICOLOR (L.) MOENCH (GRAMINEAE)
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(Peer Reviewed Journal)
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Wiersema, J.H., Dahlberg, J. 2007. The nomenclature of Sorghum bicolor (L.) Moench (Gramineae). Taxon. 56(3):941-946.
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Corrections to the Vienna Code
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(Peer Reviewed Journal)
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Mcneill, J., Turland, N.J., Wiersema, J.H. 2007. Corrections to the Vienna Code. Taxon. 56:585-586.
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PHYLOGENETIC ANALYSIS OF NYMPHAEALES USING FAST-EVOLVING AND NON-CODING CHLOROPLAST MARKERS
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(Peer Reviewed Journal)
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Lohne, C., Borsch, T., Wiersema, J.H. 2007. Phylogenetic analysis of Nymphaeales using fast-evolving and non-coding chloroplast markers. Botanical Journal of the Linnean Society. 154:141-163.
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Guidelines for proposals to conserve or reject
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(Peer Reviewed Journal)
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Mcneil, J., Redhead, S., Wiersema, J.H. 2007. Guidelines for proposals to conserve or reject names. Taxon. 56:249-252.
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Proposal to reject the name Arundo vallatoria (Poaceae)
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(Peer Reviewed Journal)
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Kirkbride, J.H.Jr., Wiersema, J.H. 2007. Proposal to reject the name Arundo vallatoria (Poaceae). Taxon. 56(1):258.
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PHYLOGENY OF NYMPHAEA (NYMPHAEACEAE): TRNT-TRNF EVIDENCE FOR EVOLUTION OF THE FIRST GLOBAL LINEAGE OF EXTANT ANGIOSPERMS
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(Peer Reviewed Journal)
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Borsch, T., Hilu, K.W., Wiersema, J.H., Lohne, C., Barthlott, W., Wilde, V. 2007. Phylogeny analysis of Nymphaea (Nymphaeaceae): Evidence from substitutions and microstructural changes in the chloroplast trnT-trnF region. International Journal of Plant Sciences. 168:639-671.
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International Code of Botanical Nomenclature (Vienna Code) Journal or equivalent: Book
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McNeill, J., Barrie, F.R. , Burdet, H.M., Demoulin, V., Hawksworth, D.J., Marhold, K., Nicolson, D.H., Prado, J., Silva, P.C., Skog, J.E., Wiersema, J. H., Turland, N. J., 2006. International Code of Botanical Nomenclature (Vienna Code) adopted by the Seventh International Botanical Congress Vienna, Austria, July 2005. A.R.G. Gantner Velag, Ruggell, Liechtenstein. 568 pp.
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PROPOSAL TO CONSERVE THE NAME ZIZIPHUS JUJUBA AGAINST Z. ZIZYPHUS (RHAMNACEAE)
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(Peer Reviewed Journal)
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Kirkbride, J.H. Jr., Wiersema, J.H., Turland, N.J. 2006. Proposal to conserve the name Ziziphus Jujuba against z. zizyphus (Rhamnaceae). Taxon. 55(4):1049-1050.
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CORRECTING THE TYPE DESIGNATION OF PHOEBE CALCAREA S. K. LEE & F. N. WEI (LAURACEAE)
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(Peer Reviewed Journal)
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Yang, Y., Wiersema, J.H. 2006. Correcting the type designation of Phoebe calcarea S. K. Lee & F. N. Wei. Taxon 55:511-512.
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THE NOMENCLATURE OF IPOMOEA MURICATA (CONVOLVULACEAE) REVISITED.
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(Peer Reviewed Journal)
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Staples, G.W., Wiersema, J.H., Chambers, N., Austin, D.F. 2005. The nomenclature of Ipomoea muricata (Convolvulaceae) revisited. Taxon 54:1075-1079.
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PROPOSAL TO CONSERVE THE NAME CENTROSEMA PUBESCENS (FABACEAE) WITH A CONSERVED TYPE
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(Peer Reviewed Journal)
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Kirkbride, J.H., Wiersema, J.H. 2005. Proposal to conserve the name Centrosema pubescens (Fabaceae) with a conserved type. Taxon. 54(1):209-210.
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PROPOSALS TO CLARIFY THE INTERPRETATION OF ARTICLE 60.7 AND ITS EXAMPLE 11
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(Peer Reviewed Journal)
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Wiersema, J.H., Nicholson, D. 2005. Proposals to clarify the interpretation of Article 60.7 and its example 11. Taxon. 53(4):1100-1101.
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PATTERN OF VARIATION AND SYSTEMATICS OF NYMPHAEA ODORATA: I. EVIDENCE FROM MORPHOLOGY AND INTER-SIMPLE SEQUENCE REPEATS (ISSRS)
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(Peer Reviewed Journal)
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Woods, K., Hilu, K.W., Wiersema, J.H., Borsch, T. 2005. Pattern of variation and systematics of Nymphaea odorata: I. Evidence from morphology and inter-simple sequence repeats (ISSRs). Systematic Botany 30:471-480.
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PATTERN OF VARIATION AND SYSTEMATICS OF NYMPHAEA ODORATA: II. SEQUENCE INFORMATION FROM ITS AND TRNL-TRNF
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(Peer Reviewed Journal)
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Woods, K., Hilu, K.W., Borsch, T., Wiersema, J.H. 2005. Pattern of variation and systematics of Nymphaea odorata: II. Sequence information from ITS and trnL-trnF. Systematic Botany 30:481-493.
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INTERNATIONAL CODE OF CULTIVATED PLANT NOMENCLATURE
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Brickell, C.D., Baum, B.R., Hetterscheid, W.A., Leslie, A.C., McNeill, J., Trehane, P., Vrugtman, F., Wiersema, J.H. 2004. International code of cultivated plant nomenclature. Acta Horticulturae 1-123 p.
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SOME PROPOSALS TO CLARIFY THE CONCEPT OF 'ASCRIPTION OF A NAME'
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(Peer Reviewed Journal)
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Zijlstra, G., Reveal, J.L., Wiersema, J.H. 2004. Some proposals to clarify the concept of 'ascription of a name'. Taxon. 53 (3) p.856
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PROPOSAL TO CONSERVE SESAMUM INDICUM AGAINST SESAMUM ORIENTALE (PEDALIACEAE)
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(Peer Reviewed Journal)
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Nicolson, D.H., Wiersema, J.H. 2004. Proposal to conserve sesamum indicum against sesamum orientale (pedaliaceae). Taxon. v. 53 pp. 210-211.
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THE ROLE OF THE GRIN DATABASE IN PROMOTING STABILIZATION OF ECONOMIC PLANT NAMES
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(Peer Reviewed Journal)
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Wiersema, J.H. 2004. The role of the grin database in promoting stabilization of economic plant names. Acta Horticulture Proceedings. v. 634 pp. 67-74.
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USAGE OF GRIN TAXONOMY AS A RESOURCE FOR CROP NAMES
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(Proceedings)
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THE ROLE OF THE GRIN DATABASE IN PROMOTING STABILIZATION OF ECONOMIC PLANT NAMES
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(Peer Reviewed Journal)
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WATER-LILIES (NYMPHAEA) IN NORTHERN HEMISPHERE: WHAT DO DNA, MORPHOLOGY, AND FOSSILS TELL US ABOUT THEIR ORIGIN, MIGRATION AND DIVERSIFICATION?
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(Abstract Only)
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PHYLOGENY AND EVOLUTION OF NYMPHAE:INTEGRATING EVIDENCE FROM DIFFERENT GENOMIC REGIONS AND FROM PALAEOBOTANY.
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(Abstract Only)
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PROPOSAL TO CONSERVE THE NAME SCHEDONORUS ARUNDINACEUS (SCHREB.) DUMORT. AGAINST SCHEDONORUS ARUNDINACEUS ROEM. & SCHULT. (POACEAE:POEAE)
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(Peer Reviewed Journal)
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A NEWLY REVISED, ON-LINE "ISTA LIST OF STABILIZED PLANT NAMES"
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(Abstract Only)
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GUIDELINES FOR PROPOSALS TO CONSERVE OR REJECT NAMES
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(Peer Reviewed Journal)
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PROPOSAL TO CONSERVE THE NAME BOUTELOUA GRACILIS (POACEAE)
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(Peer Reviewed Journal)
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NELUMBONACEAE
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CABOMBACEAE
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NYMPHAEACEAE
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NYMPHAEA(MYMPHAEACEAE) IN BOLIVIA:NOTES ON SEVERAL SPECIES, INCLUDING THREECOUNTY RECORDS, AND A KEY TO ALL SPECIES
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(Peer Reviewed Journal)
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TRES NUEVOS REGISTROS PARA MEXICO DE PLANTAS ACUATICAS VASCULARES
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(Peer Reviewed Journal)
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NOMENCLATURE OF WORLD ECONOMIC PLANTS FROM THE USDA'S GRIN DATABASE
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(Proceedings)
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POISONOUS PLANT VOUCHERS
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(Peer Reviewed Journal)
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RETROSPECTIVE SEARCHING FOR POISONOUS PLANT VOUCHERS
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(Peer Reviewed Journal)
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UNIFORM CLASSIFICATION OF WEED AND CROP SEEDS
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WORLD ECONOMIC PLANTS FROM USDA'S GRIN DATABASE
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ECONOMIC PLANTS OF THE WORLD
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POISONOUS PLANT NAMES
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OBSERVATIONS ON NATIVE NYMPHAEA OF NORTHERN NORTH AMERICA AND THEIR USE IN WATER GARDENING
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(Peer Reviewed Journal)
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NYMPHAEA TETRAGONA AND NYMPHAE LEIBERGII(NYMPHAEACEAE):NOT ONE, BUT TWO SPECIES OF DIMINUTIVE WATER-LILIES IN NORTH AMERICA.
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(Peer Reviewed Journal)
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BOBGUNNIA, A NEW AFRICAN GENUS OF TRIBE SWARTZIEAE (FABACEAE, FABOIDEAE)
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(Peer Reviewed Journal)
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TAXONOMIC INFORMATION ON CULTIVATED PLANTS IN THE USDA/ARS GERMPLASM RESOURCES INFORMATION NETWORK (GRIN).
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(Peer Reviewed Journal)
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ARS News Articles
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