Dr. Holger Thüs

Profilbild Holger Thüs

Curator (& deputy head of the Botany Department)

Fungi (incl. lichenised Taxa), Slime Moulds (Myxogastria), Algae (Cyanobacteria and various eukaryotic phyla traditionally called “algae”), Hornmosses (Anthocerophyta), Livermosses (Marchantiophyta) and Bryophytes (Bryophyta)


+49 (0) 711 / 8936-175
+49 (0) 711 / 8936-100

Research interests

Ecology, evolution and taxonomy of lichen-forming fungi, algae and mosses associated with lichens, their potential as bio-indicators and conservation issues. I am particularly interested in the interactions of lichenised fungi with other organisms, the role of secondary metabolites as well as physical structures for the functionality of the lichen symbiosis.

As a model group, I mainly use the family of the Wart lichens (Verrucariaceae/Ascomycota), a species-rich and ecologically diverse group which is present in the driest parts of the world as well as in  permanently submerged habitats, where the species of this family can cover large surface areas.

Researchgate   Scienceblog




  • Nascimbene J, Nimis PL, Klüßendorf J, Thüs H. Freshwater Lichens, Including New Species in the Genera Verrucaria, Placopyrenium and Circinaria, Associated with Lobothallia hydrocharis (Poelt & Nimis) Sohrabi and Nimis from Watercourses of Sardinia. Journal of Fungi. 2023; 9(3): 380. https://doi.org/10.3390/jof9030380
  • Xu M., Liu Y., Möller E., LaGreca S., Moya P., Wang X., Timdal E., de Boer H., Barreno E., Wang L., Thüs H., Andrésson Ó., Magnússon K.P., Ólafsdóttir E.S., Heiðmarsson S. Mycobiont-specific primers facilitate the amplification of mitochondrial small subunit ribosomal DNA: a focus on the lichenized fungal genus Melanelia (Ascomycota, Parmeliaceae) in Iceland. MycoKeys 96: 57–75. https://doi.org/10.3897/mycokeys.96.100037
  • Cezanne, R., Eichler, M., Berger, F., von Brackel, W., Breuss, O., Dornes, P., Eckstein, J., Schultz, M., Thüs, H., Türk, R. Neu- und Wiederfunde von Flechten, flechtenbewohnenden und flechtenähnlichen Pilzen in Deutschland. Herzogiella 10: 83–105.


  • Moreno, G., Castillo, A., Thüs, H.  Critical revision of Trichiales (Myxomycetes) at the Natural History Museum London (BM). Phytotaxa 567 (1): 001–020. doi.org/10.11646/phytotaxa.567.1.1
  • Printzen, C., von Brackel, W., Bültmann, H., Cezanne, R., Dolnik, C., Dornes, P., Eckstein, J., Eichler, M., John, V., Killmann, D., Otte, V., Schiefelbein, U., Schultz, M., Stordeur, R., Teuber, D., Thüs, H.  The lichenized, lichenicolous and allied fungi of Germany – a revised checklist. Herzogia 35 1 (Teil 2): 193–393.
  • Cannon, P., Thüs, H., Aptroot, A., Coppins, B., Orange, A., Sanderson, N., Simkin, J. Caliciales: Physciaceae. Revisions of British and Irish Lichens 24: 1–37. https://britishlichensociety.org.uk/sites/www.britishlichensociety.org.uk/files/Physciaceae.pdf
  • Vondrák, J, Svoboda, S., Malíček, J., Palice, Z., Kocourková, J., Knudsen, K., Mayrhofer, H., Thüs, H., Schultz, M., Košnar, J., Hofmeister, J. (2022) Cinderella turns ino a princess – an exceptional hot-spot of lichen diversity in a long-inhabited European landscape. Preslia 94: 143–181. https://doi.org/10.23855/preslia.2022.143
  • Türk, R., Berger, F., Berger, A., Berger, M., Cezanne, R., Dolnik, C., Eichler, M., Gruber, J. P., Grünberg, H., Hafellner, J., Klüßendorf, J., Neumann, P., Otte, V., Schultz, M., Stapper, N., Teuber, D., Thüs, H., Weber, L.  Flechten und lichenicole Pilze im UNESCO Biosphärenpark Salzburger Lungau (BLAM-Exkursion 2019). Herzogia 35: 61–104.
  • Bandini, D., Brandrud, T.E., Dima, B.,Dond, M., Fachada, V., Hussong, A., Mifsud, S., Oertel, B., Rodríguez Campo, F.J., Thüs, H. , Vauras, J. Weholt, Ø. & Eberhardt, U. Fibre caps across Europe: type studies and 11 new species of Inocybe (Agaricales, Basidiomycota). Integrative Systematics 5 (2): 1–85. https://doi.org/10.18476/2022.901982


  • Ellis, C.J., Asplund, J., Benesperi, R., Branquinho, C., Di Nuzzo, L., Hurtado, P., Martínez, I., Matos, P., Nascimbene, J., Pinho, P., Prieto, M., Rocha, B., Rodríguez-Arribas, C., Thüs, H., Giordani, P. Functional Traits in Lichen Ecology: A Review of Challenge and Opportunity. Microorganisms 2021, 9, 766. doi.org/10.3390/microorganisms9040766
  • Thüs, H., Wolseley, P., Carpenter, D., Eggleton, P., Reynolds, G., Vairappan, C.S., Weerakoon, G., Mrowicki, R.J. Key Roles of Dipterocarpaceae, Bark Type Diversity and Tree Size in Lowland Rainforests of Northeast Borneo — Using Functional Traits of Lichens to Distinguish Plots of Old Growth and Regenerating Logged Forests. Microorganisms 2021, 9(3), 541: 1–21. doi.org/10.3390/microorganisms9030541


  • Thüs, H., Nascimbene, J. Taming the Beast - Tools to work with Freshwater Lichens. Not. Soc.Lich. Ital. 33: 65–69.
  • Stordeur, R., Breuss, O, Eckstein, J., Grünberg, H., Kison, H.-U., Schultz, M., Thüs, H.  Beiträge zur Flechtenflora Sachsen-Anhalts und Thüringens. Herzogia 33 (2): 377–393 . https://doi.org/10.13158/heia.33.2.2020.377
  • Moreno, G. Castillo, A., Thüs, H. Critical revision of Stemonitis and Symphytocarpous (Myxomycetes) at the Natural History Museum London (BM).  Phytotaxa  4588(4): 257–280. doi.org/10.11646/phytotaxa.458.4.3
  • Spribille, T., Fryday, A., Pérez-Ortega, S., Svensson, M., Tønsberg, T., Ekman, S., Holien, H., Resl, P., Schneider, K., Stabentheiner, E., Thüs, H., Vondrák, J, Sharman, L.Lichens and associated fungi from Glacier Bay National Park, Alaska.  The Lichenologist 52 (2), 61–181. https://doi.org/10.1017/S0024282920000079
  • Borsch T., Stevens A.-D., Häffner E., Güntsch A., Berendsohn W.G., Appelhans M.S., Barilaro C., Beszteri B., Blattner F.R., Bossdorf O., Dalitz H., Dressler S., Duque-Thüs R., Esser H.-J., Franzke A., Goetze D., Grein M., Grünert U., Hellwig F., Hentschel J., Hörandl E., Janßen T., Jürgens N., Kadereit G., Karisch T., Koch M.A., Müller F., Müller J., Ober D., Porembski S., Poschlod P., Printzen C., Röser M., Sack P., Schlüter P., Schmidt M., Schnittler M., Scholler M., Schultz M., Seeber E., Simmel J., Stiller M., Thiv M., Thüs H., Tkach N., Triebel D., Warnke U., Weibulat T., Wesche K., Yurkov A., Zizka G. A complete digitization of German herbaria is possible, sensible and should be started now. Research Ideas and Outcomes, 6: e50675. https://doi.org/10.3897/rio.6.e50675


  • Chollet-Krugler M., Nguyen T.T.T., Sauvager A., Thüs H., Boustie J. (2019) Mycosporine-Like Amino Acids (MAAs) in Time-Series of Lichen Specimens from Natural History Collections. Molecules 2019, 24(6), 1070: 1–11. https://doi.org/10.3390/molecules24061070
  • Krause, C., Duque-Thüs, R., Thüs, H., Marquart, K., Wörz, A., Thiv, M. (2019) [printed 2020] Biodiversität im Wandel - Rückgang der Bärlappgewächse in Baden-Württemberg. Naturschutzinfo 1/2019: 33–36.


  • Thüs H., Killmann D., Leh B., Fischer E. Verrucaria hunsrueckensis (Verrucariaceae, lichenized Ascomycota), a new rare species with exceptionally slender ascospores from Germany. Phytotaxa 345: 26–34. https://doi.org/10.11646/phytotaxa.345.1.3
  • Shivarov V., Denchev C., Thüs H.  Ecology and distribution of Dermatocarpon (Verrucariaceae, Ascomycota) in the catchment areas of two Bulgarian rivers. The Lichenologist 50: 679–690.https://doi.org/10.1017/S0024282918000452.
  • Kistenich S. Rikkinen J.K., Thüs H., Vairappan C.S., Wolseley P.A., Timdal E. Three new species of Krogia (Ramalinaceae, lichenized Ascomycota) from the Paleotropic. MycoKeys 40: 69–88. https://doi.org/10.3897/mycokeys.40.26025.
  • Zamora J.C. et al. incl. Thüs,H. Considerations and consequences of allowing DNA sequence data to serve as types for fungal taxa. IMA Fungus (9)1: 167–175. https://doi.org/10.5598/imafungus.2018.09.01.10
  • Moreno G., Castillo A., Thüs H. Critical revision of type material of Stemonitales (Myxogastria) at the Natural History Museum London (BM). Phytotaxa 344: 149–159. https://doi.org/10.11646/phytotaxa.344.2.3
  • Thüs H. [Book review of] Nordic Lichen Flora Volume 6: Verrucariaceae part 1. Bryologist 121: 126–127. https://doi.org/10.1639/0007-2745-121.1.126
  • Thüs H. Igel-Stachelbart an Platanen - Seltener Pilz an ungewöhnlichem Ort. Wilhelma Magazin 1/2018: 23.


  • Fryday A., Thüs H.  The genus Xenolecia (Lecideaceae s. lat., Lecanoromycetidae inc. sed.), including a second species in the genus from Campbell Island, New Zealand. The Lichenologist49: 365–372. doi: 10.1017/S0024282917000287
  • Shivarov V., Thüs H., Denchev C. First records of two freshwater lichens, Hydropunctaria scabra and Verrucaria alpicola, from Bulgaria. Mycobiota 7: 1–5. doi: 10.12664/mycobiota.2017.07.01
  • Duong T.H., Huynh B.L.C., Chavasiri W., Chollet-Krugler M., Nguyen V.K., Nguyen T.H.T., Hansen P.E., Le Pogam P., Thüs H., Boustie J., Nguyen K.P.P. New erythritol derivatives from the fertile form of Roccella montagnei. Phytochemistry 137: 156–164. doi: 10.1016/j.phytochem.2017.02.012
  • Wolseley P., Sanderson N., Thüs H., Carpenter D., Eggleton P. Patterns and drivers of lichen species composition in a NW-European lowland deciduous woodland complex. Biodiversity and Conservation 26: 401– 419. doi: 10.1007/s10531-016-1250-3


  • Thüs H., Orange A., Gueidan C., Pykälä J., Ruberti C., Lo Schiavo F., Nascimbene J. (2015) Revision of the Verrucaria elaeomelaena species complex and morphologically similar freshwater lichens (Verrucariaceae, Ascomycota). Phytotaxa 197: 161–185. doi: 10.11646/phytotaxa.197.3.1
  • Wolseley P., Jørgensen P.M., Kantvilas G., Thüs H. A tribute to Peter James (1930–2014). The Lichenologist 47: 83–92. doi: 10.1017/S0024282915000055


  • Thüs, H., Aptroot, A., Seaward, M. [book chapter] Freshwater Lichens, In: Freshwater Fungi and Fungus like organisms, De Gruyter : Berlin. 333–358.
  • Lücking R., Grall A., Thüs H.  Typification of Thelephora pavonia Sw. and reinstatement of Cora ciferrii (Tomas.) comb. nov.. The Lichenologist 46: 825–828. doi: 10.1017/S0024282914000401
  • Purvis, W., Wolseley, P., Thüs, H.  Peter Wilfried James F.L.S. (28 April 1930 - 13 February 2014): an appreciation. British Lichen Society Bulletin115: 2–13.
  • Le Devehat,F., Thüs, H., Abasque, M.L., Desmail, D., Boustie, J. [book chapter] Oxidative Stress Regulation in lichens and its relevance for survival in coastal habitats, In: Sea Plants, Elsevier: 471–507.


  • Nascimbene, J., Thüs, H., Nimis, P.L. (2013) Lichens as bioindicators in freshwater ecosystems – challenges and perspectives. Annali di Botanica 3: 45–50.


  • Schiefelbein, U., Czarnota, P., Thüs H., Kukwa, M. The lichen biota of the Drawieński National Park (NW Poland, Western Pomerania). Folia Cryptogamica Estonica 49: 59–71.


  • Thüs H., Muggia L., Pérez-Ortega S., Favero-Longo S.E., Joneson S., O’Brien H., Nelsen M.P., Duque-Thüs R., Grube M., Friedl T., Brodie J., Andrew C.J., Lücking R., Lutzoni F., Gueidan C. Revisiting photobiont diversity in the lichen family Verrucariaceae (Ascomycota). European Journal of Phycology 46: 399–415. doi: 10.1080/09670262.2011.629788
  • Gueidan C., Thüs H., Pérez-Ortega S. Phylogenetic position of the brown algae-associated lichenized fungus Verrucaria tavaresiae (Verrucariaceae). The Bryologist 114: 563–569. doi: 10.1639/0007-2745-114.3.563
  • Lumbsch, H.T.,et al .including Thüs H.  One hundred new species of lichenized fungi: a signature of undiscovered global diversity. Phytotaxa 18: 1–127.
  • Joshi Y., Thüs H., Hur J.-S. Caloplaca aequata is a synonym of C. cinnabarina ( Teloschistaceae). The Lichenologist 43: 141–146. doi: 10.1017/S0024282910000812
  • Nascimbene J., Spitale D., Thüs H., Cantonati M. Congruencies between photoautotrophic groups in springs of the Italian Alps: implications for conservation strategies. Journal of Limnology 70: 3–8. doi.org/10.4081/jlimnol.2011.s1.3


  • Thüs, H., Wirth., V. Verrucaria madida in Zentraleuropa. Herzogia 22: 71 - 77.
  • Gueidan C., Savic S., Thüs, H., Roux C., Keller C., Tibell L., Prieto M., Heidmarsson S., Breuss O., Orange A., Froberg L., Wynns A.A., Navarro-Rosines P., Krzewicka B., Pykälä J., Grube M., Lutzoni F.  Generic classification of the Verrucariaceae (Ascomycota) based on molecular and morphological evidence: recent progress and remaining challenges. TAXON 58: 184–208.
  • Nascimbene J., Thüs H., Marini L., Nimis P.L. ) Early colonization of stone by freshwater lichens of restored habitats: A case study in northern Italy. Science of The Total Environment, 407: 5001–5006. doi: 10.1016/j.scitotenv.2009.06.012
  • Hauck, M., Debruyn, U., Wirth, V., Sparrius, L., Thüs, H., Preussing, M. New or interesting records of lichen forming fungi from Lower Saxony, Germany. Herzogia 22: 109–116.


  • Thüs H., Schultz M (2008) Freshwater Flora of Central Europe, Fungi, Part 1 : Lichens. Spektrum : Heidelberg. 229 pp.
  • Thüs H., Nascimbene J (2008) Contributions toward a new taxonomy of Central European freshwater species of the lichen genus Thelidium (Verrucariales, Ascomycota). The Lichenologist 40: 499–499. doi: 10.1017/S0024282908007603


  • Leistikow, K.U., Thüs, H.The Wood Book. Taschen: Cologne. 800 pp.
  • Nascimbene, J., Thüs, H., Nimis, P.L.  Freshwater lichens in springs of the eastern Italian Alps: floristics, ecology and potential for bioindication. Annales de Limnologie - International Journal of Limnology 43: 285–292.


  • Thüs, H.  Neufunde und Bemerkungen zur Gefährdung amphibischer Flechten aus dem Saarland und Rheinland-Pfalz. Delattinia 32: 127–140.
  • Thüs, H., Licht, W.  Oceanic and hygrophytic lichens from the Gargano-Peninsula (Puglia / South-Eastern-Italy). Herzogia 19: 149–153.


  • Thüs, H., Aptroot, A., Czarnota, P., Jjüriado, I., Kocourkova, J., Kukwa, M, Lomuhs, P., Palice, Z., Randlane, T., Saag, L., Serusiaux, E., Sipman, H., Sparrius, L., Suija, A. New or interesting lichens and lichenicolous fungi found during the 5th IAL Symposium in Estonia. Folia Cryptogamica Estonica 41: 13–22.


  • Thüs, H., Dornes, P. Neu- und Wiederfunde von Flechten in Hessen. Hessische Floristische Briefe 52: 62–67.
  • Cezanne, R., Eichler, M., Thüs, H.  Nachträge zur ”Roten Liste der Flechten Hessens”. Erste Folge. Botanik und Naturschutz in Hessen 15: 107–142.
  • Thüs, H. Flechten und die Stadtbiotopkartierung von Mainz. Mainzer Naturwissenschaftliches Archiv, Beihefte 22: 218–236. 
  • Thüs, H. Zikaden (Homoptera/Auchenorrhyncha) im Mainzer Stadtgebiet. Mainzer Naturwissenschaftliches Archiv, Beihefte, 22: 272–278.


  • Thüs, H.  Die Flechtenflora des NSG Kalkberg in Lüneburg. Jahrbuch des Naturwissenschaftlichen Vereins im Fürstentum Lüneburg 42: 189–204.


  • Schöller, H., Thüs, H., Böttner, M. Flechten (Lichenes) als Indikatoren zur Bewertung von Ökosystemen und ihre Bedeutung für den Naturschutz. Kleine Senckenbergreihe 32: 121–134.
  • Thüs, H., Schöller, H. Zur Bedeutung von Obstbäumen für gefährdete Flechten im nördlichen Rheinhessen. Fauna Flora Rheinland-Pfalz 9: 303–327.


  • Thüs, H.  Epiphytische Flechten um Balingen-Zillhausen (Schwäbische Alb). Naturkundliche Beiträge des DJN 31: 52–67.
  • Thüs, H.  Zikaden der Weiden um Balingen-Zillhausen (Schwäbische Alb). Naturkundliche Beiträge des DJN 31: 36–51.
  • Kirschbaum, U., Windisch, U., Heitmann, B., Kaesler, C., Kluthe, R., Kömig, R., Kohlhass, D., Luschtinetz, R., Martin, O., Mayer, B., Meinunger, L., Oepen, S., Rechimann, C., Sendke, P., Siegmuind, I., Stahlberg, M., Teuber, D., Thüs, H., Tiller. K. Beurteilung der lufthygienischen Situation Hessens mittels epiphytischer Flechten. Umweltplanung, Arbeits- und Umweltschutz, 171: 1–150.


  • Thüs, H.  Flechten der Kreuzwertheimer Umgebung. Naturkundliche Beiträge des DJN 27: 41–49.
  • Thüs, H.  Limnologische Untersuchungen am Wittwichsbach. Naturkundliche Beiträge des DJN 27: 9–19.


  • Amithai, N., Benda, J., Blankenhagen, P., Heitz, S., Heubel, V., Thüs, H. Limnologische Gewässergütebestimmung nach verschiedenen Methoden. Naturkundliche Beiträge des DJN 26: 10–36.
  • Thüs, H. (1992) Immissionsökologische Untersuchungen an einer Mülldeponie. Naturkundliche Beiträge des DJN 25: 13–26.


  • Thüs, H. Flechtenfunde im Nordschwarzwald. Naturkundliche Beiträge des DJN 23: 37–48.


  • Thüs, H.  Flechten und Bioindikation - Flechtenatlas der Stadt Ratingen und immissionsökologischer Methodenvergleich. Bund für Umwelt und Naturschutz Deutschland (BUND) Landesverband NW e.v.: Ratingen. 212 pp.


  • Thüs, H. Taxonomie, Verbreitung und Ökologie silicoler Süßwasserflechten im außeralpinen Mitteleuropa. Bibliotheca Lichenologica 83: 1–214.
  • Thüs, H., Schöller, H. Floristische und ökologische Untersuchungen an Kleinstandorten hygrophytischer Flechten auf Obstbäumen im Mainzer Trockengebiet (Rheinland-Pfalz, Deutschland). Herzogia 15: 147–158.



  • Curator (Fungi - incl. lichenised taxa -, Anthocerotphyta, Marchantiophyta, Bryophyta, "Algae"), State Museum of Natural History Stuttgart (STU)


  • Senior Curator in Charge (Lichens, Myxogastria & Bryophytes), The Natural History Museum, London


  • Senior Curator (Lichens & Myxogastria), The Natural History Museum, London


  • Curator (Lichens & Myxogastria), The Natural History Museum London


  • Scientist, State Museum of Natural History Karlsruhe


  • Scientist, Technical University Kaiserslautern


  • Freelance Environmental Consultant


  • Scientist, Senckenberg Research Institute and Natural History Museum Frankfurt/M.

scientific education


  • PhD (Botany), Senckenberg Research Institute and Natural History Museum Frankfurt/M. & University Frankfurt/M.


  • PhD  student  (Botany) / 1998-2001 stipend by Studienstiftung des Deutschen Volkes


  • Diploma (Biology), University Mainz


  • Diploma studend (Biology), Universität Mainz / stipend by Studienstiftung des Deutschen Volkes


  • Civil Service, Landesamt für Wasser und Abfall NRW & Naturschutzbund Kreisverband Gießen