English: The Swiss lichenologist Philippe Clerc in the Allondon vallon, Switzerland in 2019, examining specimens of the lichen genus Usnea.
Français : Le lichenologiste suisse Philippe Clerc en 2019, dans le vallon de l'Allondon (canton de Genève, Suisse), en train d'examiner des spécimens de lichens du genre Usnea.
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Uploaded a work by Yoshihito Ohmura from Gerlach, Alice; Kantvilas, Gintaras; de los Angeles Herrera Campos, Maria; Truong, Camille; Flakus, Adam; Miadlikowska, Jolanta (2020). "A Festschrift in honor of Philippe Clerc: an eminent and multitalented lichenologist in Switzerland". Plant and Fungal Systematics. 65 (2): 239. doi:10.35535/pfsyst-2020-0019 with UploadWizard