Picture of myself seating on a rock
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Natural History Museum
Cromwell Road


Employment history

Postdoctoral researcher, CBS-KNAW Fungal Biodiversity Centre (Netherlands), 2008-2010

Research and teaching assistant, Duke University (USA), 2003-2007

Supervisor of environmental studies, Observatoire Mycologique (France), 1994-2001


2002-2007       Ph.D. in Systematic Biology, Duke University, Durham, NC, USA

1998-1999       DEA Animal and Plant Systematics, MNHN, Paris, France

1997-1998       Maitrise (Biology), Louis Pasteur University, Strasbourg, France

1995-1997       Licence (Biology), Louis Pasteur University, Strasbourg, France

1992-1994       DEUG (Biology), Louis Pasteur University, Strasbourg, France

Professional Roles


Elias Magnus Fries medal from the International Mycological Association (2012)

Graduate Fellowship Award from the Mycological Society of America  (2006)

Scholarship, research and travel grants

Centre for Ecology and Evolution Research grant (2012)

Synthesys Grant for a research visit to the Natural History Museum in London (2008)

Mycological Society of America Mentor Student Travel Award (2006 & 2007)

Mycological Society of America International Travel Award (2006)

National Science Foundation Doctoral Dissertation Improvement Grant (2005)

Karling Graduate Student Research Award from the Botanical Society of America (2004)

Biology Grant-In-Aid from Duke University (2004)

Graduate Award for International Research from Duke University (2004)

Mini-PEET Award from the Society of Systematic Biologists (2003)

Society of Systematic Biologists Award for Graduate Student Research (2003)

American Society of Plant Taxonomists Graduate Research Award (2003)

Mellon Foundation Award in Plant Systematics (2002 & 2003)


Systematics and evolution of the lichen family Verrucariaceae

Wahlenbergiella striatula

The marine species Wahlenbergiella striatula © C. Gueidan


Verrucariaceae is a large family of lichenized ascomycetes comprising about 45 genera and 750 species. They are ecologically quite diverse, with species colonizing many different substrates (rock, soil, wood, bark, mosses and lichens) and living in various habitats (on arid and exposed rock surfaces, on permanently immerged boulders in streams, in the intertidal zone on rocky shores). My research aims at re-assessing generic delimitation in this family using molecular data and investigating the evolutionary history of some morphological and ecological traits using ancestral state reconstruction methods.


This collaborative project has involved several lichen researchers interested in the family Verrucariaceae, among whom Sanja Savić and Leif Tibell (Uppsala University), Lucia Muggia and Martin Grube (Karl-Franzens-Universitat Graz), Holger Thüs (NHM), Claude Roux (Faculté St-Jérôme), Francois Lutzoni (Duke University).


Photobiont diversity in the family Verrucariaceae

Staurothele areolata

Photobiont cells inside the fruiting body of Staurothele areolata © C. Gueidan


Most lichens form associations either with green algae from the genera Trebouxia and Trentepohlia or with Cyanobacteria (e.g., Nostoc). In the lichen family Verrucariaceae, photobionts mostly belong to other genera of green algae, such as Dilabifilum, Myrmecia, and Stichococcus. More strikingly, members of this lichen family can also associate with yellow-green algae (Heterococcus) and brown algae (Petroderma maculifore). I am interested in looking at the diversity of photobionts in this family and understanding the cause of this diversity.


This project is the result of a collaborative effort from several colleagues: Holger Thüs and Juliet Brodie (NHM), Martin Grube and Lucia Muggia (Karl-Franzens Universität Graz), François Lutzoni (Duke University), Sergio Pérez-Ortega (Centro de Ciencias Medioambientales), Suzanne Joneson (University of Idaho), Heath O’Brien (University of Toronto).

Other interests

Rock-inhabiting fungi

Coniosporium perforans

The rock-inhabiting species Coniosporium perforans in culture on MEA (strain A95 from Anna Gorbushina) © C. Gueidan

Rock-inhabiting fungi (also called microcolonial fungi) are poorly known organisms forming compact, melanized colonies on bare rock surfaces. Discovered in the early eighties, they have first been isolated from Antarctica and the Negev and Mojave deserts. Subsequently, they were shown to be ubiquitous on rock surfaces, in extreme and temperate climates. They are well adapted to nutrient-poor and dry habitats where they are particularly successful colonizers due to their extremotolerance and restricted competition with other microbes. Because some rock-inhabiting fungi seem to be able to interact with lichen photobionts, I am interested in elucidating their phylogenetic placements in the fungal tree of life and investigating their evolutionary history.


For these projects, I had the chance to collaborate with several experts on rock-inhabiting fungi, including Constantino Ruibal (University of Madrid), Anna Gorbushina (Free University of Berlin and BAM) and Sybren de Hoog (CBS-KNAW Fungal Biodiversity Center).


Chaetothyriales and black-yeast fungi

Rhinocladiella mackenziei

Conidiospores of Rhinocladiella mackenziei © H. Badali

Black-yeast fungi include melanized fungi, which occasionally have a yeast-like growth. Many of them belong to the order Chaetothyriales, the sister group of the lichen order Verrucariales. This order includes human and animal pathogens, saprobes and rock-inhabiting fungi. The number of species of Chaetothyriales able to cause symptoms in human (ranging from cutaneous lesions to systemic infections) is quite large. As a postdoctoral researcher at the CBS-KNAW Fungal Biodiversity Center, my work aimed at investigating phylogenetic relationships within Chaetothyriales and exploring the evolution of pathogenicity in this order.


For this research, I collaborated with Sybren de Hoog (CBS-KNAW Fungal Biodiversity Center), the world expert in black-yeast fungi, and his Ph.D. student Hamid Badali.


  • DeBourgogne, A., Gueidan, C., de Hoog, G.S., Lozniewski, A., Machouart, M. ( 2012 ) Comparison of two DNA sequence-based typing schemes for the Fusarium solani Species Complex and proposal of a new consensus method. Journal of Microbiological Methods 91 : 65-72 .
  • Jayalal, U., Wolseley, P., Gueidan, C., Aptroot, A., Wijesundara, S., Karunaratne, V. ( 2012 ) Anzia mahaeliyensis and Anzia flavotenuis, two new species from Sri Lanka. The Lichenologist 44 : 381-389 .
  • Prieto, M., Martínez, I., Aragón, G., Gueidan, C., Lutzoni, F. ( 2012 ) Molecular phylogeny of Heteroplacidium, Placidium and related catapyrenioid genera (Verrucariaceae, lichen-forming Ascomycota) American Journal of Botany 99 : 23-35 .
  • Rinkel, B.E., Hayes, P., Gueidan, C., Brodie, J. ( 2012 ) A molecular phylogeny of Acrochaete and other endophytic green algae (Ulvales, Chlorophyta) Journal of Phycology 48 : 1020-1027 .
  • Weerakoon, G., Aptroot, A., Lumbsch, H.T., Wolseley, P.A., Wijeyaratne, S.C, Gueidan, C. ( 2012 ) New molecular data on Pyrenulaceae from Sri Lanka reveal two well-supported groups within this family. The Lichenologist 44 : 639-647 .
  • Gueidan, C., Ruibal, C., de Hoog, G.S., Schneider, H. ( 2011 ) Rock-inhabiting fungi originated during periods of dry climate in the late Devonian and middle Triassic Fungal Biology 115 : 987-996 .
  • Gueidan, C., Thüs, H., Pérez-Ortega, S. ( 2011 ) Phylogenetic position of the brown algae-associated lichenized fungus Verrucaria tavaresiae (Verrucariaceae) The Bryologist 114 : 563-569 .
  • Machouart, M., Gueidan, C., Khemisti, A., Dulongcourty, R., Sudhadham, M., de Hoog, G.S. ( 2011 ) Use of ribosomal introns as new markers of genetic diversity in Exophiala dermatitidis. Fungal Biology 115 : 1038-1050 .
  • Summerbell R.C., Gueidan C., Schroers H-J., de Hoog G.S., Starink M., Arocha Rosete Y., Guarro J., Scott J.A. ( 2011 ) Acremonium phylogenetic overview and revision of Gliomastix, Sarocladium, and Trichothecium Studies in Mycology 68 : 139-162 .
  • 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. ( 2011 ) Revisiting photobiont diversity in the lichen family Verrucariaceae (Ascomycota) European Journal of Phycology 46 : 399-415 .
  • Untereiner, W.A., Gueidan, C., Orr, M-J., Diederich, P. ( 2011 ) The phylogenetic position of the lichenicolous ascomycete Capronia peltigerae. Fungal Diversity 49 : 225-233 .
  • Debourgogne, A., Gueidan, C., Hennequin, C., Contet-Audonneau, N., de Hoog, S., Machouart, M. ( 2010 ) Development of a new MLST scheme for differentiation of Fusarium solani Species Complex (FSSC) isolates. Journal of Microbiological Methods 82 : 319-323 .
  • Muggia, L., Gueidan, C., Grube, M. ( 2010 ) Phylogenetic placement of some morphologically unusual members of Verrucariales. Mycologia 102 : 835-846 .
  • Boekhout, T., Gueidan, C., de Hoog, S., Samson, R., Varga, J., Walther, G. ( 2009 ) Fungal taxonomy: new developments in medically important Fungi. Current Fungal Infection Reports 3(3) : 170-178 . 10.1007/s12281-009-0022-x
  • Crous, P.W., Schoch, C.L., Hyde, K.D., Wood, A.R., Gueidan, C., de Hoog, G.S., Groenewald, J.Z. ( 2009 ) Phylogenetic lineages in the Capnodiales. Studies in Mycology 64 : 17-47 . 10.3114/sim.2008.64.02
  • Gueidan, C., Savic, S., Thus, H., Roux, C., Keller, C., Tibell, L., Prieto, M., Heidmarsson, S., Breuss, O., Orange, A., Froberg, L., Amtoft Wynns, A., Navarro-Rosines, P., Krzewicka, B., Pykala, J., Grube, M., Lutzoni, F. ( 2009 ) Generic classification of the Verrucariaceae (Ascomycota) based on molecular and morphological evidence: recent progress and remaining challenges. Taxon 58(1) : 184-208 .
  • Muggia, L., Grube, M., Gueidan, C., Perlmutter, G.B., Eriksson, O.E. ( 2009 ) Molecular data confirm the position of Flakea papillata in the Verrucariaceae. The Bryologist 112(3) : 538-543 . 10.1639/0007-2745-112.3.538
  • O’Donnell, K., Gueidan, C., Sink, S., Johnston, P., Crous, P., Glenn, A., Riley, R., Zitomer, N., Coyler, P., Waalwijk, C., van der Lee, T., Kang, S., Kim, H.S., Geiser, D., Juba, J., Baayen, R., Sutton, D. A., Skovgaard, K., Ploetz R., Elliott, M., Davis, M., Sarver, B. ( 2009 ) A two-locus DNA sequence database for typing plant and human pathogens within the Fusarium oxysporum Species Complex. Fungal Genetics and Biology 46(12) : 936-948 .
  • Ruibal, C., Gueidan, C., Selbmann, L., Gorbushina, A.A., Crous, P.W., Groenewald, J.Z., Muggia, L., Grube, M., Isola, D., Schoch, C.L., Staley, J.T., Lutzoni, F., de Hoog, G.S. ( 2009 ) Phylogeny of rock-inhabiting fungi related to Dothideomycetes. Studies in Mycology 64 : 123-133 . 10.3114/sim.2009.64.06
  • Schoch, C.L., Crous, P.W., Groenewald, J.Z., Boehm, E.W., Burgess, T.I., de Gruyter, J., de Hoog, G.S., Dixon, L.J., Grube, M., Gueidan, C., Harada, Y., Hatakeyama, S., Hirayama, K., Hosoya, T., Huhndorf, S.M., Hyde, K.D., Jones, E.B., Kohlmeyer, J., Kruys, A., Li, Y.M., Lucking, R., Lumbsch, H.T., Marvanova, L., Mbatchou, J.S., McVay, A.H., Miller, A.N., Mugambi, G.K., Muggia, L., Nelsen, M.P., Nelson, P., Owensby, C.A., Phillip,S A.J., Phongpaichit, S., Pointing, S.B., Pujade-Renaud, V., Raja, H.A., Plata, E.R., Robbertse, B., Ruibal, C., Sakayaroj, J., Sano, T., Selbmann, L., Shearer, C.A., Shirouzu, T., Slippers, B., Suetrong, S., Tanaka, K., Volkmann-Kohlmeyer, B., Wingfield, M.J., Wood, A.R., Wondenberg, J.H., Yonezawa, H., Zhang, Y., Spatafora, J.W. ( 2009 ) A class-wide phylogenetic assessment of Dothideomycetes. Studies in Mycology 64 : 1-15 . 10.3114/sim.2008.64.01
  • Schoch, C.L., Sung, G.H., López-Giráldez, F., Townsend, J.P., Miadlikowska, J., Hofstetter, V., Robbertse, B., Matheny, P.B., Kauff, F., Wang, Z., Gueidan, C., Andrie, R.M., Trippe, K., Ciufetti, L.M., Wynns, A., Fraker, E., Hodkinson, B.P., Bonito, G., Groenewald, J.Z., Arzanlou, M., de Hoog, G.S., Crous, P.W., Hewitt, D., Pfister, D.H., Peterson, K., Gryzenhout,M., Wingfield, M.J., Aptroot, A., Suh, S.O., Blackwell, M., Hillis, D.M., Griffith, G.W., Castlebury, L.A., Rossman, A.Y., Lumbsch, H.T., Lücking, R., Büdel, B., Rauhut, A., Diederich, P., Ertz, D., Geiser, D.M., Hosaka, K., Inderbitzin, P., Kohlmeyer, J., Volkmann-Kohlmeyer, B., Mostert, L., O’Donnell, K., Sipman, H., Rogers, J.D., Shoemaker, R.A., Sugiyama, J., Summerbell, R.C., Untereiner, W.A., Johnston, P., Stenroos, S., Zuccaro, A., Dyer, P., Crittenden, P., Cole, M.S., Hansen, K., Trappe, J.M., Yahr, R., Lutzoni, F., Spatafora, J.W. ( 2009 ) The Ascomycota Tree of Life: a phylum-wide phylogeny clarifies the origin and evolution of fundamental reproductive and ecological traits. Systematic Biology 58 : 224-239 . 10.1093/sysbio/syp020
  • Badali, H., Gueidan, C., Najafzadeh, M.J., Bonifaz, A., Gerrits van den Ende, A.H.G., de Hoog, G.S. ( 2008 ) Ecological, morphological and molecular diversity of Cladophialophora. Studies in Mycology 61 : 175-191 . Studies in Mycology | 10.3114/sim.2008.61.18
  • Gueidan, C., Ruibal, C., de Hoog, G.S., Gorbushina, A., Untereiner, W.A., Lutzoni, F. ( 2008 ) A rock-inhabiting ancestor for mutualistic and pathogen-rich fungal lineages. Studies in Mycology 61 : 111-119 . Studies in Mycology | 10.3114/sim.2008.61.11
  • Najafzadeh, M.J., Gueidan, C., Badali, H., Gerrits van den Ende, A.H.G., Xi, L., de Hoog, G.S. ( 2008 ) Genetic diversity and species delimitation in the opportunistic genus Fonsecaea. Medical Mycology 47 : 1-10 . 10.1080/13693780802527178
  • Savic, S., Tibell, L., Gueidan, C., Lutzoni, F. ( 2008 ) Molecular phylogeny and systematics of Polyblastia (Verrucariaceae, Eurotiomycetes) and allied genera. Mycological Research 112 : 1307-1318 . 10.1016/j.mycres.2008.05.002
  • Gueidan, C., Roux, C. ( 2007 ) Verrucaria calciseda DC. Néotypification, description et transfert dans le genre Bagliettoa. Bulletin de la Société Linnéenne de Provence 58 : 181-194 . Bulletin de la Société Linnéenne de Provence
  • Gueidan, C., Roux, C., Lutzoni, F. ( 2007 ) Using a multigene analysis to assess generic delineation and character evolution in the Verrucariaceae (Eurotiomycetes, Ascomycota). Mycological Research 111(10) : 1147-1170 . 10.1016/j.mycres.2007.08.010
  • Hibbett, D.S., Binder, M., Bischoff, J.F., Blackwell, M., Cannon, P.F., Eriksson, O., Huhndorf, S., James, T., Kirk, P.M., Lücking, R., Lumbsch, T., Lutzoni, F., Matheny, P.B., Mclaughlin, D.J., Powell, M.J., Redhead, S., Schoch, C.L., Spatafora, J.W., Stalpers, J.A., Vilgalys, R., Aime, M.C., Aptroot, A., Bauer, R., Begerow, D., Benny, G.L., Castlebury, L.A., Crous, P.W., Dai, Y.C., Gams, W., Geiser, D.M., Griffith, G.W., Gueidan, C., Hawksworth, D.L., Hestmark, G., Hosaka, K., Humber, R.A., Hyde, K., Kõljalg, U., Kurtzman, C.P., Larsson, K.H., Lichtwardt, R., Longcore, J., Miadlikowska, J., Miller, A., Moncalvo, J.-M., Mozley-Standridge, S., Oberwinkler, F., Parmasto, E., Reeb, V., Rogers, J.D., Roux, C., Ryvarden, L., Sampaio, J.P., Schuessler, A., Sugiyama, J., Thorn, R.G., Tibell, L., Untereiner, W.A., Walker, C., Wang, Z., Weir, A., Weiss, M., White, M., Winka, K., Yao, Y.J. & Zhang, N. ( 2007 ) A higher-level phylogenetic classification of the Fungi. Mycological Research 111(5) : 509-547 . 10.1016/j.mycres.2007.03.004
  • Navarro-Rosines, P., Roux, C., Gueidan, C. ( 2007 ) La genroj Verrucula kaj Verruculopsis (Verrucariaceae, Verrucariales). Bulletin de la Société Linnéenne de Provence 58 : 133-180 . Bulletin de la Société Linnéenne de Provence
  • Geiser, D.M., Gueidan, C., Mialikowska, J., Lutzoni, F., Kauff, F., Hofstetter, V., Fraker, E., Schoch, C.L., Tibell, L., Untereiner, W.A., Aptroot, A. ( 2006 ) Eurotiomycetes: Eurotiomycetidae and Chaetothyriomycetidae. Mycologia (98)6 : 1053-1064 . 10.3852/mycologia.98.6.1053
  • James, T.Y., Kauff, F., Schoch, C., Matheny, P.B., Hofstetter, V., Cox, C.J., Celio, G., Gueidan, C., Fraker, E., Miadlikowska, J., Lumbsch, T., Rauhut, A., Reeb, V., Arnold, A.E., Amtoft, A., Stajich, J.E., Hosaka, K., Sung, G.H., Johnson, D., O’Rourke, B., Binder, M., Curtis, JM., Slot, J.C., Wang, Z., Wilson, A.W., Schüßler, A., Longcore, J.E., O’Donnell, K., Mozley-Standridge, K., Porter, D., Letcher, P.M., Powell, M.J., Taylor, J.W., White, M.M., Griffith, G.W., Davies, D.R., Sugiyama, J., Rossman, A.Y., Rogers, J.D., Pfister, D.H., Hewitt, D., Hansen, K., Hambleton, S., Shoemaker, R.A., Kohlmeyer, J., Volkmann-Kohlmeyer, B., Spotts, R.A., Serdani, M., Crous, PW., Hughes, K.W., Matsuura, K., Langer, E., Langer, G., Untereiner, W.A., Lücking, R., Büdel, B., Geiser, D.M., Aptroot, A., Buck, W.R., Cole, M.S., Diederich, P., Printzen, C., Schmitt, I., Schultz, M., Yahr, R., Zavarzin, A., Hibbett, D.S., Lutzoni, F., McLaughlin, D.J., Spatafora, J.W., Vilgalys, R. ( 2006 ) Reconstructing the early evolution of the fungi using a six-gene phylogeny. Nature 443 : 818-822 . 10.1038/nature05110
  • Miadlikowska, J., Kauff, F., Hofstetter, V., Fraker, E., Grube, M., Hafellner, J., Reeb, V., Hodkinson, B.P., Kukwa, M., Lucking, R., Hestmark, G., Otalora, M.A.G., Rauhut, A., Budel, B., Scheidegger, C., Timdal, I., Stenroos, S., Brodo, I., Perlmutter, G., Ertz, D., Diederich, P., Lendemer, J. C., Tripp, E., Yahr, R., May, P., Gueidan, C., Arnold, A.E., Robertson, C., Lutzoni, F. ( 2006 ) New insights into classification and evolution of the Lecanoromycetes (Pezizomycotina, Ascomycota) from phylogenetic analyses of three ribosomal RNA- and two protein-coding genes. Mycologia (98)6 : 1088-1103 . 10.3852/mycologia.98.6.1088
  • Spatafora, J.W., Sung, G.H., Johnson, D., O’Rourke, B., Serdani, M., Spotts, R., Lutzoni, F., Hofstetter, V., Miadlikowska, J., Reeb, V., Gueidan, C., Fraker, E., Lumbsch, T., Lucking, R., Schmitt, I., Hosaka, K., Aptroot, A., Roux, C., Miller, A., Geiser, D., Hafellner, J., Hestmark, G., Arnold, A.E., Budel, B., Rauhut, A., Hewitt, D., Untereiner, W.A., Cole, M.S., Scheidegger, C., Schultz, M., Sipman, H., Schoch, CL. ( 2006 ) A five-gene phylogeny of Pezizomycotina. Mycologia 1018-1028 : (98)6 . 10.3852/mycologia.98.6.1018
  • Lutzoni, F., Kauff, F., Cox, C., McLaughlin, D., Celio, G., Dentinger, B., Padamsee, M., Hibbett, D., James, T., Baloch, E., Grube, M., Reeb, V., Hofstetter, V., Schoch, C., Arnold, A.E., Miadlikowska, J., Spatafora, J., Johnson, D., Hambleton, S., Crockett, M., Shoemaker, R., Sung, G.H., Lücking, R., Lumbsch, T., O’Donnell, K., Binder, M., Diederich, P., Ertz, D., Gueidan, C., Hansen, K., Harris, R.C., Hosaka, K., Lim, Y.W., Matheny, B., Nishida, H., Pfister, D., Rogers, J., Rossman, A., Schmitt, I., Sipman, H., Stone, J., Sugiyama, J., Yahr, R., Vilgalys, R. ( 2004 ) Assembling the fungal tree of life: Progress, classification, and evolution of subcellular traits. American Journal of Botany 91 : 1446-1480 .
  • Gueidan, C., Roux, C. ( 2003 ) Flore lichénique de Vallon-Pont-d’Arc (Ardèche) et données historiques sur la flore lichénique de l’Ardèche. Bulletin d’Information de l’Association Française de Lichénologie 28(1) : 23-29 . Bulletin d’Information de l’Association Française de Lichénologie
  • Roux, C., Gueidan, C., Clerc P. ( 2003 ) Lichens et champignons lichénicoles des Alpes françaises: espèces nouvelles et intéressantes. Cryptogamie Mycologie 24(3) : 275-286 .
  • Gueidan, C., Roux, C. ( 2002 ) Liste provisoire des lichens et des champignons lichénicoles récoltés lors de l’excursion de l’AFL en Haute-Savoie en 2001. Bulletin d’Information de l’Association Française de Lichénologie 27(2) : 33-38 . Bulletin d’Information de l’Association Française de Lichénologie
  • Moreau, P. A., Daillant, O., Corriol, G., Gueidan, C., Courtecuisse, R. ( 2002 ) RENECOFOR: inventaire des champignons supérieurs et des lichens sur 12 placettes du réseau et dans un site atelier de l’INRA/GIP ECOFOR. Résultats d’un projet pilote (1996-1998) . Office National des Forêt : Fontainebleau , 146 .
  • Roux, C., Gueidan, C. ( 2002 ) Flore et végétation des lichens et champignons lichénicoles non lichénisés du massif de la Sainte-Baume (Var, Provence, France). Bulletin de la Société Linnéenne de Provence 53 : 123-150 . Bulletin de la Société Linnéenne de Provence
  • Roux, C., Gueidan, C., Navarro-Rosines, P. ( 2002 ) La position systématique de Polyblastia deminuta. Mycotaxon 84 : 1-20 .
  • Daillant, O., Gueidan, C., Roche, F., Nicolas, M., Nicolas F. ( 2001 ) Observation des lichens et évolution de la qualité de l’air dans l’agglomération de Mâcon. Terre Vive 122 : 13-22 .
  • Guilloux, F., Bellemere, A., Gueidan, C. ( 2000 ) Liste des lichens observés et/ou récoltés lors de l’excursion de l’Association Française de Lichénologie en Corse (13-20 avril 1999). Bulletin d’Information de l’Association Française de Lichénologie 25(2) : 27-46 .
  • Gueidan, C., Daillant, O., Tillier, C. ( 1997 ) Observation de la qualité de l’air par les lichens à Autun. Bulletin de la Société d’Histoire Naturelle d’Autun 164 : 15-32 .