“…Knowledge on the lichens of Horsnund, Bockfjorden, Sørkapp Land, Edgeøya and several other parts of Svalbard was supplemented successively by: Hafellner (1982), Elvebakk (1984a), Nimis (1985), Olech (1987, Olech and Alstrup (1989), Aptroot and Alstrup (1991), Elvebakk and Tønsberg (1992), Schuhwerk (1992), Øvstedal et al (2009), Redchenko et al (2010), Konoreva (2011), Singh and Ravindra (2013), , , Wietrzyk et al (2016Wietrzyk et al ( , 2017, , Chesnokov (2018, 2021), , , , and Czernyadjeva et al (2020). Finally, Øvstedal et al (2009) reported 742 species from Svalbard, but only 34 species from Barentsøya.…”