The type specimens in Eugen von Halácsy´s Herbarium Graecum Author Reich, Dieter Division of Systematic and Evolutionary Botany, University of Vienna, Rennweg 14, Vienna, 1030, Austria dieter. reich @ univie. ac. at, http: // orcid. org / 0000 - 0003 - 0784 - 0048 walter. gutermann @ univie. ac. at, https: // orcid. org / 0000 - 0002 - 9201 - 6872 dieter.reich@univie.ac.at Author Gutermann, Walter Division of Systematic and Evolutionary Botany, University of Vienna, Rennweg 14, Vienna, 1030, Austria dieter. reich @ univie. ac. at, http: // orcid. org / 0000 - 0003 - 0784 - 0048 walter. gutermann @ univie. ac. at, https: // orcid. org / 0000 - 0002 - 9201 - 6872 dieter.reich@univie.ac.at Author Bardy, Katharina Institute for Integrative Nature Conservation Research, University of Natural Resources and Life Sciences, Gregor-Mendel-Strasse 33, Vienna, 1180, Austria katharina. bardy @ univie. ac. at, http: // orcid. org / 0000 - 0002 - 5882 - 8818 katharina.bardy@univie.ac.at Author Rainer, Heimo Division of Systematic and Evolutionary Botany, University of Vienna, Rennweg 14, Vienna, 1030, Austria dieter. reich @ univie. ac. at, http: // orcid. org / 0000 - 0003 - 0784 - 0048 walter. gutermann @ univie. ac. at, https: // orcid. org / 0000 - 0002 - 9201 - 6872 & Department of Botany, Natural History Museum Vienna, Burgring 7, Vienna, 1010, Austria heimo. rainer @ univie. ac. at, http: // orcid. org / 0000 - 0002 - 5963 - 349 X dieter.reich@univie.ac.at Author Raus, Thomas Botanic Garden and Botanical Museum Berlin, Freie Universität Berlin, Königin-Luise-Str. 6 - 8, 14195 Berlin, Germany T. Raus @ bgbm. org, http: // orcid. org / 0000 - 0001 - 5778 - 4705 aus@bgbm.org Author Sonnleitner, Michaela Division of Systematic and Evolutionary Botany, University of Vienna, Rennweg 14, Vienna, 1030, Austria dieter. reich @ univie. ac. at, http: // orcid. org / 0000 - 0003 - 0784 - 0048 walter. gutermann @ univie. ac. at, https: // orcid. org / 0000 - 0002 - 9201 - 6872 & Department of Botany, Natural History Museum Vienna, Burgring 7, Vienna, 1010, Austria michaela. sonnleitner @ univie. ac. at; https: // orcid. org / 0000 - 0002 - 2026 - 8229 dieter.reich@univie.ac.at Author Tan, Kit Institute of Biology, University of Copenhagen, Universitetsparken 15 D, 2100 Copenhagen Ø, Denmark kitt @ bio. ku. dk; https: // orcid. org / 0000 - 0001 - 8742 - 4612 kitt@bio.ku.dk Author Lachmayer, Margarita Division of Structural and Functional Botany, University of Vienna, Rennweg 14, Vienna, 1030, Austria margarita. lachmayer @ univie. ac. at; https: // orcid. org / 0000 - 0001 - 8369 - 9037 Authors for correspondence margarita.lachmayer@univie.ac.at text Phytotaxa 2021 2021-03-29 493 1 1 156 http://dx.doi.org/10.11646/phytotaxa.493.1.1 journal article 10.11646/phytotaxa.493.1.1 1179-3163 5755400 Acer campestre var. obtusangulum Halácsy, Consp. Fl. Graec. 1 (2): 287. 1900. Current name: Acer campestre Syntype :—[ Greece ] Prope “chan Paleochori” distr. Janina. In dumetis: 2 August 1895 , A . Baldacci 128 ( WU 0076417 ) .