Soderstrom, , N. A. KONSTANTINOVA, A. HAGBORG, T. PRESTO, K. HASSEL & M. VON KONRAT, N. A. KONSTANTINOVA, A. HAGBORG, T. PRESTO, K. HASSEL & M. VON KONRAT

376 L SÖDERSTRÖM, N.A. KONSTANTINOVA, A. HAGBORG, T. PRESTØ, K. HASSEL & M. VON KONRAT al. 2002a, 2002b, Damsholt 2013, Hodgetts 2015, Hodgetts & Lockhart 2020. GUSTAV V LAND: Konstantinova & Savchenko 2012, 2015. DICKSON LAND: Konstantinova & Savchenko 2008c. HAAKON VII LAND: Arnell & Mårtensson 1959, Frisvoll & Blom 1992, 1997, Frisvoll & Elvebakk 1996. OSCAR II LAND: Arnell & Mårtensson 1959, Frisvoll & Blom 1992, 1997, Frisvoll & Elvebakk 1996. PRINS KARLS FORLAND: Konstantinova & Savchenko 2020a.

Peltolepis Lindb.

*** Peltolepis quadrata (Saut.) Müll.Frib. View in CoL SVALBARD: Müller 1952, Arnell 1956, Steere & Inoue 1978, Düll 1983, Söderström 1995, Damsholt 2002, Söderström et al. 2002a, 2002b, Damsholt 2013, Hodgetts 2015, Hodgetts & Lockhart 2020. DICKSON LAND: Frisvoll & Elvebakk 1996, Frisvoll & Blom 1997. HAAKON VII LAND: Frisvoll & Elvebakk 1996, Frisvoll & Blom 1997. JAMES LAND: Frisvoll & Elvebakk 1996, Frisvoll & Blom 1997. NATHORST LAND: This publication. OSCAR II LAND: Borovichev 2010, Koroleva & Borovichev 2014. PRINS KARLS FORLAND: Konstantinova & Savchenko 2020a. SØRKAPP LAND: This publication. WEDEL JARLSBERG LAND: This publication.

Prasanthus Lindb. View in CoL

*** Prasanthus suecicus (Gottsche) Lindb. View in CoL SVALBARD: Schuster 1974, Schljakov 1981, Düll 1983, Söderström 1995, Schuster & Konstantinova 1996, Konstantinova 2000, Damsholt 2002, Söderström et al. 2002a, Söderström et al. 2002b, Vilnet et al. 2010, Hodgetts 2015, Shaw et al. 2015, Patzak et al. 2016a, Patzak et al. 2016b, Mamontov et al. 2018 [s.loc.spec.], Mamontov et al. 2019, Hodgetts & Lockhart 2020. GUSTAV V LAND: Konstantinova et al. 2020a. PRINS OSCARS LAND: Konstantinova & Savchenko 2008a. ALBERT I LAND: Arnell & Mårtensson 1959, Frisvoll & Elvebakk 1996, Thingsgaard & Damsholt 2007. HAAKON VII LAND: Arnell & Mårtensson 1959, Frisvoll & Elvebakk 1996. NORDENSKIÖLD LAND: Frisvoll & Elvebakk 1996, Thingsgaard & Damsholt 2007, Konstantinova & Savchenko 2008b, Prestø et al. 2014. OSCAR II LAND: Arnell & Mårtensson 1959, Frisvoll & Elvebakk 1996. PRINS KARLS FORLAND: Konstantinova & Savchenko 2020a. WEDEL JARLSBERG LAND: Rejment-Grochowska 1967, Karczmarz & Święs 1990 a, Frisvoll & Elvebakk 1996.

Protochilopsis A.V.Troitsky, Bakalin et Fedosov

*** Protochilopsis grandiretis (Lindb. ex Kaal.) A.V.Troitsky, Bakalin et Fedosov [ Lophozia grandiretis (Lindb. ex Kaal.) Schiffn. , Schistochilopsis grandiretis (Lindb. ex Kaal.) Konstant. View in CoL ]. SVALBARD: Schuster 1969, Schuster & Damsholt 1974, Steere & Inoue 1978, Schljakov 1980, Düll 1983, Bisang 1991, 1999, Söderström 1995, Damsholt 2002, Söderström et al. 2002a, 2002b, Damsholt 2013 also as Lophozia grandiretis subsp. proteidea, Hodgetts 2015 , Stotler & Crandall-Stotler 2017, Bakalin et al. 2020b, Hodgetts & Lockhart 2020. DICKSON LAND: Konstantinova & Savchenko 2008c as Schistochilopsis grandiretis var. parviretis, Belkina et al. 2015 . HAAKON VII LAND: Konstantinova & Savchenko 2006, 2008a. NORDENSKIÖLD LAND: Arnell & Mårtensson 1959, Frisvoll & Blom 1992, 1997, Frisvoll & Elvebakk 1996. OSCAR II LAND: Koroleva & Borovichev 2014.

Ptilidium Nees View in CoL

*** Ptilidium ciliare View in CoL (L.) Hampe [ Jungermannia ciliaris L., Blepharozia ciliaris (L.) Dumort.]. SVALBARD: Gottsche et al. 1845, Bryhn 1906, Müller 1954 a, Düll 1983, Smith 1990, Söderström 1995, Frisvoll & Elvebakk 1996, Paton 1999, Damsholt 2002, Söderström et al. 2002a, 2002b, Hodgetts 2015, Hodgetts & Lockhart 2020, Bakalin et al. 2021. BJØRNØYA: Berggren 1875a, Watson 1922, Summerhayes & Elton 1923a, Söderström 1995, Frisvoll & Elvebakk 1996, Damsholt 2002, Söderström et al. 2002b. GUSTAV V LAND: Berggren 1875a, 1875b. PRINS OSCARS LAND: This publication. BARENTSØYA: Philippi 1973, Konstantinova & Savchenko 2018. EDGEØYA: Sommerfeldt 1833, Philippi 1973, Heinemeijer 1979, Heinemeijer & van Dijk 2004. SPITSBERGEN: Polunin 1945 [Kongsfjorden], Arnell & Mårtensson 1959 [W. Spitsbergen]. ALBERT I LAND: Lindberg 1866, Berggren 1875a, Wulff 1902. ANDRÉE LAND: This publication. DICKSON LAND: This publication, Belkina et al. 2015. HAAKON VII LAND: Lindberg 1866, Wegener et al. 1992. JAMES LAND: This publication. NORDENSKIÖLD LAND: Watson 1922, Watson 1922 as Ptilidium ciliare f. inundatum, Hadač 1946 View in CoL , Hagen 1952, Eurola 1968, Hadač 1989, Konstantinova & Savchenko 2007, 2008 a, 2008b, Kreier et al. 2010, Virtanen et al. 2013, Prestø et al. 2014. OSCAR II LAND: Gugnacka-Fiedor & Nryśkiewicz 1982, Boińska & Gugnacka-Fiedor 1983, Kobayashi et al. 1990, Newsham & Goodall-Copestake 2021. PRINS KARLS FORLAND: Arnell 1900, Watson 1922, Summerhayes & Elton 1923a, 1923b, Konstantinova & Savchenko 2020a. SØRKAPP LAND: Sommerfeldt 1833, Dubiel & Olech 1990, Saniewski et al. 2020. WEDEL JARLSBERG LAND: Rejment-Grochowska 1967, Eurola 1968, Karczmarz & Święs 1988, 1989, 1990a, 1990b, Święs & Karczmarz 1991a, 1993a, 1993b, Dubiel & Olech 1992, Kuc 1998.

Riccardia Gray View in CoL

*** Riccardia chamedryfolia (With.) Grolle. NORDENSKIÖLD LAND : This publication.

Saccobasis H.Buch

*** Saccobasis polita (Nees) H.Buch View in CoL [ Jungermannia polita Nees , Lophozia polita (Nees) Macoun , Sphenolobus politus (Nees) Steph. , Tritomaria polita (Nees) Jørg. ]. SVALBARD: Bryhn 1906, Müller 1910a, Arnell 1928, Müller 1954b, Arnell 1956, Schuster 1969, Worley 1972, Schuster & Damsholt 1974, Schljakov 1980, Düll 1983 [with a ‘?”], Smith 1990, Söderström 1995, Paton 1999, Damsholt 2002 [with a “?”], Söderström et al. 2002a, Söderström et al. 2002b, Damsholt 2013 [with a?], Hodgetts 2015, Hodgetts & Lockhart 2020. GUSTAV V LAND: Berggren 1875 a, Frisvoll & Elvebakk 1996. HAAKON VII LAND: This publication. NORDENSKIÖLD LAND: This publication. OSCAR II LAND: Arnell & Mårtensson 1959. WEDEL JARLSBERG LAND: Rejment-Grochowska 1967, Karczmarz & Święs 1989, 1991a, Święs & Karczmarz 1991b, 1993b, Frisvoll & Elvebakk 1996.

** Saccobasis polymorpha (R.M.Schust.) Schljakov View in CoL [ Tritomaria polita subsp. polymorpha R.M.Schust. ]. SVALBARD: Düll 1983 [with a ‘?”], Söderström 1995, Frisvoll & Elvebakk 1996 [‘probably”], Konstantinova 2000, Damsholt 2002 [with a “?”], Söderström et al. 2002a [with a ‘?’], Konstantinova 2003, Söderström et al. 2007, Hodgetts 2015, Hodgetts & Lockhart 2020. HAAKON VII LAND: Konstantinova & Savchenko 2006. PRINS KARLS FORLAND: Konstantinova & Savchenko 2020a. SØRKAPP LAND: This publication. WEDEL JARLSBERG LAND: Konstantinova & Koroleva 2003.

Sauteria Nees View in CoL

*** Sauteria alpina (Nees) Nees. View in CoL SVALBARD: Lindberg 1877, 1882, Schiffner 1893, Arnell & Jensen 1907, Müller 1907a,

Checklist of liverworts on Svalbard 377

Arnell 1928, Jørgensen 1934, Arnell 1956, Worley 1972, Düll 1983, Schuster 1992, Söderström 1995, Frisvoll & Elvebakk 1996, Damsholt 2002, Söderström et al. 2002a, 2002b, Damsholt 2013, Hodgetts 2015, Hodgetts & Lockhart 2020. BJØRNØYA: Lindberg 1882, Kaalaas 1893a. Schiffner 1893, Schuster 1992, Söderström 1995, Frisvoll & Elvebakk 1996, Damsholt 2002, 2013, Söderström et al. 2002b. GUSTAV V LAND: Konstantinova & Savchenko 2012, Konstantinova et al. 2014. BARENTSØYA: Philippi 1973, Konstantinova & Savchenko 2018. SPITSBERGEN: Arnell & Mårtensson 1959 [W. Spitsbergen], Thingsgaard & Damsholt 2007. ALBERT I LAND: Wulff 1902. BÜNSOW LAND: This publication. DICKSON LAND: Konstantinova & Savchenko 2008c, Belkina et al. 2015. HAAKON VII LAND: Konstantinova & Savchenko 2006, 2008 a, Konstantinova et al. 2020b. JAMES LAND: This publication. NORDENSKIÖLD LAND: This publication. OSCAR II LAND: Borovichev 2010, Koroleva & Borovichev 2014. PRINS KARLS FORLAND: Konstantinova & Savchenko 2020a. WEDEL JARLSBERG LAND: Rubasinghe 2011.

Scapania (Dumort.) Dumort.

*** Scapania curta (Mårt.) Dumort. View in CoL [ Martinellius curtus (Mårt.) Lindb. View in CoL ‘ Martinellia curta ’]. SVALBARD: Kaalaas 1893b, Müller 1901, Stephani 1910, Müller 1915a, Arnell 1928, Harmsen & Seidenfaden 1932, Frye & Clark 1946, Worley 1972, Schuster 1974, Schuster & Damsholt 1974, Düll 1983, Smith 1990, Söderström 1995, Paton 1999, Damsholt 2002, Söderström et al. 2002a, 2002b, Hodgetts 2015, Hodgetts & Lockhart 2020. BJØRNØYA: Watson 1922, Summerhayes & Elton 1923a, Söderström 1995, Frisvoll & Elvebakk 1996, Frisvoll & Blom 1997, Damsholt 2002 Söderström et al. 2002b. KONG KARLS LAND: Arnell 1900, Frisvoll & Elvebakk 1996, Frisvoll & Blom 1997. SPITSBERGEN: Berggren 1875b. HAAKON VII LAND: Frisvoll & Elvebakk 1996, Frisvoll & Blom 1997. NORDENSKIÖLD LAND: Berggren 1875a [rejected as S. cuspiduligera View in CoL by Arnell & Mårtensson 1959], Müller 1905, Arnell 1922. OSCAR II LAND: Watson 1922, Summerhayes & Elton 1923a, 1923b, Arnell & Mårtensson 1959, Frisvoll & Elvebakk 1996, Frisvoll & Blom 1997. WEDEL JARLSBERG LAND: Rejment-Grochowska 1967, Święs & Karczmarz 1991 a, Frisvoll & Elvebakk 1996, Frisvoll & Blom 1997.

*** Scapania cuspiduligera (Nees) Müll.Frib. View in CoL SVALBARD: Berggren 1875b as Scapania bartlingii, Kaalaas 1893b as Scapania carestiae, Müller 1901 as Scapania bartlingii, Müller 1905 as Scapania bartlingii, Bryhn 1906 as Scapania bartlingii, Müller 1915b , Frye & Clark 1946, Persson 1952, Schuster 1974, Schuster & Damsholt 1974, Smith 1990, Söderström 1995, Paton 1999, Damsholt 2002, 2013, Söderström et al. 2002a. Hodgetts 2015, Hodgetts & Lockhart 2020. BJØRNØYA: Berggren 1875a, 1875b both as Scapania bartlingii, Bryhn 1906 as Scapania bartlingii, Frye & Clark 1946 , Persson 1952, Söderström 1995, Frisvoll & Elvebakk 1996, Damsholt 2002, Söderström et al. 2002b. NORDAUSTLANDET: Konstantinova & Savchenko 2015. PRINS OSCARS LAND: This publication. BARENTSØYA: Konstantinova & Savchenko 2018. ALBERT I LAND: TYPE of Scapania bartlingii var. elongata , TYPE of Scapania bartlingii var. obtusata, Lindberg 1866 as Scapania bartlingii var. elongate and var. obtusata, Berggren 1875a as Scapania bartlingii var. elongata, Frisvoll & Elvebakk 1996 . DICKSON LAND: Frisvoll & Elvebakk 1996, Konstantinova & Savchenko 2008 c, 2011, Belkina et al. 2015. HAAKON VII LAND: Frisvoll & Elvebakk 1996, Konstantinova & Savchenko 2006, 2008a. NATHORST LAND: This publication. NORDENSKIÖLD LAND: Berggren 1875a as Scapania bartlingii, Persson 1942 , Frisvoll & Elvebakk 1996, Konstantinova & Savchenko 2008b. OSCAR II LAND: Koroleva & Borovichev 2014. PRINS KARLS FORLAND: Konstantinova & Savchenko 2020a. WEDEL JARLSBERG LAND: This publication.

*** Scapania gymnostomophila Kaal. View in CoL SVALBARD: Schuster & Damsholt 1974, Schuster 1974, Schljakov 1981, Düll 1983, Smith 1990, Söderström 1995, Paton 1999, Damsholt 2002, 2013, Söderström et al. 2002a, 2002b, Hodgetts 2015, Hodgetts & Lockhart 2020. BJØRNØYA: Persson 1946, Arnell 1956, Schuster 1974, Söderström et al. 2002b. NORDAUSTLANDET: GUSTAV V LAND: Konstantinova & Savchenko 2011, Konstantinova & Savchenko 2012, Konstantinova & Savchenko 2015. BARENTSØYA: Konstantinova & Savchenko 2018. DICKSON LAND: Frisvoll & Blom 1992, Frisvoll & Elvebakk 1996, Frisvoll & Blom 1997, Konstantinova & Koroleva 2003 as Scapania gymnostomophila f. incurva, Konstantinova & Savchenko 2008 c, Konstantinova & Savchenko 2011 . HAAKON VII LAND: Arnell & Mårtensson 1959, Frisvoll & Blom 1997. JAMES LAND: Frisvoll & Blom 1992, Frisvoll & Elvebakk 1996, Frisvoll & Blom 1997. NATHORST LAND: This publication. OSCAR II LAND: Frisvoll & Blom 1992. PRINS KARLS FORLAND: Konstantinova & Savchenko 2020a. WEDEL JARLSBERG LAND: Konstantinova & Koroleva 2003 as Scapania gymnostomophila f. incurva . NOTE:We are not aware of any primary report from Bjørnøya.

*** Scapania hyperborea Jørg. View in CoL [ Martinellius hyperboreus (Jørg.) H.A.Möller ‘ Martinellia hyperborea ’]. SVALBARD: Arnell 1928, Frye & Clark 1946, Arnell 1956, Düll 1983, Söderström 1995, Damsholt 2002, Söderström et al. 2002a, 2002b, Damsholt 2013, Hodgetts 2015, Hodgetts & Lockhart 2020. BJØRNØYA: Arnell 1922, 1928, Buch 1928, Harmsen & Seidenfaden 1932, Frye & Clark 1946, Arnell 1956, Schuster 1974 as Scapania hyperborea f. hyperborea, Söderström 1995 View in CoL , Frisvoll & Elvebakk 1996, Damsholt 2002, Söderström et al. 2002b. PRINS OSCARS LAND: Konstantinova & Savchenko 2008a. SPITSBERGEN: Persson 1942 [Kings Bay]. ALBERT I LAND: Arnell & Mårtensson 1959, Frisvoll & Elvebakk 1996. HAAKON VII LAND: Arnell & Mårtensson 1959. NORDENSKIÖLD LAND: Arnell 1922, Eurola 1971, Hadač 1989, Frisvoll & Elvebakk 1996, Konstantinova & Savchenko 2008b. OSCAR II LAND: Arnell & Mårtensson 1959. WEDEL JARLSBERG LAND: Rejment-Grochowska 1967, Frisvoll & Elvebakk 1996.

*** Scapania irrigua (Nees) Nees View in CoL [ Martinellius irriguus (Nees) Lindb. View in CoL ‘ Martinellia irrigua ’]. SVALBARD: Arnell 1928, Jørgensen 1934, Frye & Clark 1946, Arnell 1956, Müller 1956b, Worley 1972, Schuster & Damsholt 1974, Söderström 1995, Damsholt 2002, Söderström et al. 2002b. BJØRNØYA: Watson 1922, Summerhayes & Elton 1923a, Söderström 1995, Frisvoll & Elvebakk 1996, Damsholt 2002, Söderström et al. 2002b. BARENTSØYA: Philippi 1973, Konstantinova & Savchenko 2018. EDGEØYA: Philippi 1973. ALBERT I LAND: Lindberg 1866 as Scapania irrigua View in CoL J globulifera, Arnell 1922 as ‘ Martinellia irrigua ’, Frisvoll & Elvebakk 1996 . HEER LAND: Philippi 1973. NORDENSKIÖLD LAND: Hadač 1989, Frisvoll & Elvebakk 1996. OSCAR II LAND: Brattbakk et al. 1978. SABINE LAND: Philippi 1973. WEDEL JARLSBERG LAND: Rejment-Grochowska 1967, Eurola 1968, Karczmarz & Święs 1989, Frisvoll & Elvebakk 1996. NOTE: It is possible