Head
Otto-Renner-Villa, Room 103A
Philosophenweg 16
07743 Jena
Herbarium Haussknecht

Systematics, taxonomy & evolution of grass-like monocots (e.g., Cyperaceae, Juncaceae, Poaceae) focusing on genus Carex L., including evolutionary, biogeographic & functional questions (e.g., macroevolution, diversification, niche & trait evolution, range & biome evolution, trait plasticity). Collection-based research, such as molecular phylogenetics, DNA barcoding, integrative taxonomy, including application & development of non-destructive and minimally invasive methods of semi-automated trait extraction from herbarium specimens (e.g., SEM, digital microscopy, imaging). Arctic, high mountains of the Northern Hemisphere, Central Asia, Neotropics. I’m further interested in glacial history, ethnobotany & German floristics.
Current position
Since 03/2025
Scientist & Curator, Senckenberg Gesellschaft für Naturforschung (SGN), Senckenberg Institute for Plant Form and Function & Herbarium Haussknecht (JE) at Friedrich Schiller University (SIP), Jena, Germany [Tenure track position].
Previous scientific work & positions held
05/2018 – 02/2025
Research associate (Postdoc/Assistant Professor, since 20 February 2019), Martin Luther University Halle-Wittenberg, Institute of Biology, Geobotany and Botanical Garden, Systematics and Biodiversity, Herbarium, Halle (Saale), Germany.
04/2017 – 04/2018
Research assistant / PhD student, with Graduate fellowship of the State of Saxony-Anhalt, Martin Luther University Halle-Wittenberg, Institute of Biology, Geobotany and Botanical Garden, Halle (Saale), Germany.
04/2014 – 12/2017
Research assistant / PhD student, ibid. DFG project “Taxon recruitment and evolution of the Arctic flora – the synthesis” (HO2213/3-2).
06/2011 – 12/2013
Research assistant (graduate), ibid. DFG project “Taxon recruitment and evolution of the Arctic flora” (HO2213/3-1).
01/2011 – 03/2011
Research assistant (undergraduate), ibid., Geobotany and Botanical Garden, Chorology group (Prof. Dr. Helge Bruelheide, Dr. Erik Welk).
University studies & education
04/2014 – 02/2019
PhD thesis, Martin Luther University Halle-Wittenberg, Institute of Biology, Geobotany and Botanical Garden, Halle (Saale), Germany. PhD thesis: “Systematics, taxonomy and biogeography of species-rich groups of the genus Carex (Cyperaceae)”. Supervisors: PD Dr. Matthias H. Hoffmann, Prof. Dr. Martin Röser. Graduation: “magna cum laude”.
10/2011 – 02/2014
Studies in Biology (MSc), ibid. Graduation: “magna cum laude”. Majors and minors in Plant systematics, Conservation biology. MSc thesis: “Systematik und Evolution von Carex sect. Racemosae G. Don (Cyperaceae)”. Supervisors: PD Dr. Matthias H. Hoffmann, Prof. Dr. Martin Röser.
04/2013 – 07/2013
During MSc studies, Friedrich Schiller University, Institute of Ecology and Evolution, Systematic Botany (Prof. Dr. Frank Hellwig), Jena, Germany. Visiting courses and lectures in Plant sociology, Agricultural biology (within the Middle German Network of Universities).
10/2008 – 09/2011
Studies in Biology (BSc), Martin Luther University, Halle (Saale), Germany. Graduation: “cum laude”. Majors and minors in Plant systematics, General zoology. BSc thesis: “Phylogenie von Carex sect. Vesicariae (Cyperaceae)”. Supervisors: PD Dr. Matthias H. Hoffmann, Prof. Dr. Martin Röser.
Selected publications
Morales-Alonso, A., Gebauer, S., […], & Jiménez- Mejías, P. (2024). Fieldwork, herbarium revisions, and DNA barcodes: Basic ingredients to shed light on the dark realm of plant biodiversity, an example with two enigmatic Andean Carex (Cyperaceae) species. Systematic Botany 49: 209–226. https://doi.org/10.1600/036364424X17110456120776.
Hoffmann, M.H., Gebauer, S., & Lühmann, R. (2021). Root anatomy predicts ecological optima in Carex (Cyperaceae) in terms of Ellenberg indicator values. Ecological indicators 129, 107979. https://doi.org/10.1016/j.ecolind.2021.107979.
Roalson, E.H., Jiménez-Mejías, P., Hipp, A.L., […], Gebauer, S., […], Wilson, K.L. & Zhang, S. (2021). A framework infrageneric classification of Carex (Cyperaceae) and its organizing principles. Journal of Systematics and Evolution. https://doi.org/10.1111/jse.12722.
Jiménez-Mejías, P., Saldivia, P., Gebauer, S. & Martín-Bravo, S. (2021). A new remarkable dwarf sedge (Carex phylloscirpoides, Cyperaceae) from Northern Chile, with insights on the evolution of austral Carex section Racemosae. Systematic Botany 46: 34–47. https://doi.org/10.1600/036364421X16128061189567.
Favre, A., Pringle, J.S., Heckenhauer, J., Kozuharova, E., Gao, Q.-B., Lemmon, E.M., Lemmon, A.R., Sun, H., Tkach, N., Gebauer, S., Su, S.S. & Fu, P.C. (2020). Phylogenetic relationships and sectional delineation within Gentiana (Gentianaceae). Taxon 63: 342–354. https://doi.org/10.1002/tax.12405.
Villaverde, T., Jiménez-Mejías, P., Martín-Bravo, S., Luceño, M., Roalson, E.H., Hipp, A.E., […] Gebauer, S. […] Starr, J.R. (2020). A new classification of Carex (Cyperaceae) subgenera supported by a HybSeq backbone phylogenetic tree. Botanical Journal of the Linnean Society 194: 141–163. https://doi.org/10.1093/botlinnean/boaa042.
Martín-Bravo S, Jiménez-Mejías P, […], Gebauer, S., […] Starr, J.R. (2019). A tale of worldwide success: Behind the scenes of Carex (Cyperaceae) biogeography and diversification. Journal of Systematics and Evolution 57: 695–718. https://doi.org/10.1111/jse.12549.
Hoffmann, M.H., Gebauer, S. & von Rozycki, T. (2017). Assembly of the Arctic flora: Highly parallel and recurrent pattern in sedges (Carex, Cyperaceae). American Journal of Botany 104: 1334–1343. http://www.amjbot.org/content/early/2017/09/18/ajb.1700133.
Gebauer, S., Röser, M. & Hoffmann, M.H. (2015). Molecular phylogeny of the species-rich Carex sect. Racemosae (Cyperaceae) based on a combined set of four nuclear and chloroplast markers. Systematic Botany 40: 433–447. http://www.bioone.org/doi/abs/10.1600/036364415X688303.
Gebauer, S., Starr, J.R. & Hoffmann, M.H. (2014). Parallel and convergent diversification in two northern hemispheric species-rich Carex lineages (Cyperaceae). Organisms, Diversity and Evolution 14: 247–258. https://link.springer.com/article/10.1007/s13127-014-0171-9.
https://scholar.google.com/citations?user=SCSP_9EAAAAJ&hl=en

Academic Career
since 01/2015
Curator of the Cryptogamic Division of Herbarium Haussknecht (JE), Senckenberg Institute for Plant, Form and Function (SIP), Friedrich Schiller University Jena.
04/2009 – 12/2014
Research associate in the project team “Global plant initiative” funded by the Andrew W. Mellon Foundation in New York at the Herbarium Haussknecht (JE), Friedrich Schiller University Jena.
01/2009 – 03/2009
Research associate at the Herbarium of the Georg August University Göttingen (GOET); Albrecht von Haller Institute for Plant Sciences, Systematic Botany.
01/2009 – 03/2009
Research associate at the Herbarium Haussknecht (JE), Friedrich Schiller University Jena.
Higher Education
08/2005 – 12/2008
Thesis in Systematic Botany, Albrecht von Haller Institute for Plant Sciences, Georg August University Göttingen. Doctoral thesis: “Toward a natural classification of leafy liverworts (Jungermanniidae, Marchantiophyta): Molecular phylogeny and morphological evolution in selected lineages of Porellales and Jungermanniales”. Supervisors: Jochen Heinrichs & Harald Schneider. Grade: Summa cum laude.
01/2002 – 12.2004
Student assistant at the Herbarium Haussknecht (JE), Friedrich Schiller University Jena.
09/1999 – 07/2005
Studies in Biology (Diploma) at the Friedrich Schiller University Jena (Botany, Geography and Ecology). Thesis: Molekularsystematische Untersuchungen zur Phylogenie der Geocalycaceae H.Klinggr. (Hepaticae) unter besonderer Berücksichtigung der Gattungen Chiloscyphus Corda, Heteroscyphus Schiffn. und Leptoscyphus Mitt.”. Supervisors: Frank H. Hellwig & J. Heinrichs. Grade: 1,1 (sehr gut).
09/1998 – 08/1999
Studies in Medical Technology at the University of Applied Sciences Jena.
Selected Publications
Suárez, G. M., Larraín, J. & Hentschel, J. 2024. Lectotypification of Aongstroemia rufipes, a new synonym of Dicranella campylophylla (Dicranaceae, Bryophyta). – Phytotaxa 664(4): 297–300. https://doi.org/10.11646/phytotaxa.664.4.7
Gradstein, S. R. & Hentschel, J. 2024. On Lepicolea Dumort. (Marchantiophyta: Lepicoleaceae) in tropical America. – Nova Hedwigia 118(1–2): 29–39. https://doi.org/10.1127/nova_hedwigia/2023/0895
Stordeur, R., Eckstein, J., Hentschel, J., John, V., Kison, H.-U., Knudsen, K., Schiefelbein, U., Seelemann, A. & Thiemann, R. 2023. Bemerkenswerte Neu- und Wiederfunde von Flechten, lichenicolen und saprophytischen Pilzen in Sachsen-Anhalt und angrenzenden Regionen. – Schlechtendalia 40: 251–268. http://dx.doi.org/10.25673/101277
Söderström, L. & Hentschel, J. 2023. Notes on Early Land Plants Today. 91. Types and original material of liverworts (Marchantiophyta) in Herbarium Haussknecht (JE) collected in Central America. – Lindbergia 2023: 1–27 (e25015). https://doi.org/10.25227/linbg.25015
Söderström, L., Hagborg, A., Hentschel, J., Uribe Melendez, J., Cañiza Ovelar, B. & von Konrat, M. 2023. Notes on Early Land Plants Today. 81. Lectotypification of some names in Frullania. – Lindbergia 2023: 1–3 (e24518). https://doi.org/10.25227/linbg.24518
Cañiza Ovelar, B. D., Hentschel, J. & Söderström, L. 2023. Notes on Early Land Plants Today. 92. Lejeunea trinitensis var. varians (Herzog) comb. nov. – Lindbergia 2023: 1–2 (e25016). https://doi.org/10.25227/linbg.25016
Sokolova, I. V., Gololobova, M. A., Hentschel, J. & Potemkin, A. D. 2022. Cryptogamic nomenclatural notes. 5. – Novosti Sist. Nizsh. Rast. 56(1): 197–202. https://doi.org/10.31111/nsnr/2022.56.1.197
Bakalin, V., Vilnet, A., Klimova, K., Ma, W. Z., Choi, S. S. & Hentschel, J. 2021. Hidden in plain view: an example from Ptilidium (Ptilidiaceae, Marchantiophyta). – Phytotaxa 510(1): 29–42. https://doi.org/10.11646/PHYTOTAXA.510.1.3
Schütze, P., Baumann, K., Eckstein, J., Müller, F., Glowniak, K., Koperski, M., Hentschel, J. & Schmidt, H.-C. 2020. Rote Listen Sachsen-Anhalt. Moose (Anthocerotophyta, Marchantiophyta, Bryophyta). 3. Fassung, Stand August 2019. – Ber. Landesamt. Umweltschutz Sachsen-Anhalt 2020(1): 115–142.
Hentschel, S. & Hentschel, J. 2020. Das Landschaftsschutzgebiet „Leinewehtal“ bei Goldschau. – Osterfelder Kult.- & Heimatbl. 43: 22–26.
Grünberg, H., Hentschel, J., Rettig, J., Morgner, C., Stark, W. & Endtmann, E. 2019. Mitteilungen zur Pilz- und Flechtenflora des Pöllwitzer Waldes – Fundmeldungen von der Frühjahrswanderung der Thüringischen Botanischen Gesellschaft am 16. März 2019. – Mauritiana (Altenburg) 36: 69–89.
Mamontov, Y. S., Hentschel, J., Konstantinova, N. A., Perkovsky, E. E. & Ignatov, M. S. 2017. Hepatics from Rovno amber (Ukraine), 6. Frullania rovnoi, sp. nov. – J. Bryol. 39(4): 336–341. https://doi.org/10.1080/03736687.2017.1343220
Grünberg, H., Cezanne, R., Eckstein, J., Eichler, M., Kempf, H., Meinunger, L., Preussing, M., Putzmann, F., Scholz, P., Thiel, H., Thiemann, R. & Hentschel, J. 2017. Neue und bemerkenswerte Flechtenfunde in Thüringen. – Herzogia 30(2): 463–482. https://doi.org/10.13158/heia.30.2.2017.463
Söderström, L., Hagborg, A., von Konrat, M., Bartholomew-Began, S., Bell, D., Briscoe, L., Brown, E., Cargill, D. C., Costa, D. P., Crandall-Stotler, B. J., Cooper, E. D., Dauphin, G., Engel, J. J., Feldberg, K., Glenny, D., Gradstein, S. R., He, X., Heinrichs, J., Hentschel, J., Ilkiu-Borges, A. L., Katagiri, T., Konstantinova, N. A., Larraín, J., Long, D. G., Nebel, M., Pócs, T., Puche, F., Reiner-Drehwald, E., Renner, M. A. M., Sass-Gyarmati, A., Schäfer-Verwimp, A., Moragues, J. G. S., Stotler, R. E., Sukkharak, P., Thiers, B. M., Uribe, J., Váňa, J., Villarreal, J. C., Wigginton, M., Zhang, L. & Zhu, R.-L. 2016. World checklist of hornworts and liverworts. – PhytoKeys 59: 1–828. https://dx.doi.org/10.3897/phytokeys.59.6261
Functional Biodiversity of Plants
Administration
Integrative Plant Taxonomy
