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

366 L SÖDERSTRÖM, N.A. KONSTANTINOVA, A. HAGBORG, T. PRESTØ, K. HASSEL & M. VON KONRAT ratings follow Söderström et al. (2016) except in the very few cases where new information is at hand.

In the current checklist we note under which name a taxon is reported except when it is reported under the currently accepted name or a homotypic synonym of it.

Aneura Dumort.

*** Aneura pinguis View in CoL (L.) Dumort. [ Riccardia pinguis View in CoL (L.) Gray]. SVALBARD: Berggren 1875b, Bryhn 1906, Müller 1954 a, Düll 1983, Söderström 1995, Frisvoll & Elvebakk 1996, Paton 1999, Damsholt 2002, Söderström et al. 2002a, 2002 b, Konstantinova 2003, Hodgetts 2015, Hodgetts & Lockhart 2020. BJØRNØYA: Söderström et al. 2002b. GUSTAV V LAND: Berggren 1875 a, Konstantinova & Savchenko 2012. BARENTSØYA: Philippi 1973, Konstantinova & Savchenko 2018. EDGEØYA: Philippi 1973, Heinemeijer 1979. SPITSBERGEN: Lindberg 1866 as Aneura pinguis View in CoL D 3 tenuis [Kingsbay]. BÜNSOW LAND: Acock 1940. DICKSON LAND: Konstantinova & Savchenko 2008 c, Konstantinova & Savchenko 2011, Belkina et al. 2015. HAAKON VII LAND: Lindberg 1866 as Aneura pinguis View in CoL D 2 minor, Berggren 1875a, Arnell & Mårtensson 1959, Frisvoll 1978. JAMES LAND: This publication. NATHORST LAND: This publication. NORDENSKIÖLD LAND: Berggren 1875 a, Konstantinova & Savchenko 2008b, Virtanen et al. 2013, Prestø et al. 2014. NYFRIESLAND: Lindberg 1866 as Aneura pinguis View in CoL D 2 minor. OSCAR II LAND: Arnell & Mårtensson 1959. SØRKAPP LAND: Dubiel & Olech 1990. WEDEL JARLSBERG LAND: Rejment-Grochowska 1967, Karczmarz & Święs 1988, Karczmarz & Święs 1989, Święs & Karczmarz 1993b.

Anthelia (Dumort.) Dumort. View in CoL

** Anthelia juratzkana (Limpr.) Trevis. View in CoL SVALBARD: Bryhn 1906, Müller 1914a, Frye & Clark 1943, Müller 1954a, Schuster 1974, Düll 1983, Söderström 1995, Frisvoll & Elvebakk 1996, Paton 1999, Damsholt 2002, Söderström et al. 2002a, 2002b, Damsholt 2013, Hodgetts 2015, Hodgetts & Lockhart 2020. BJØRNØYA: Watson 1922, Söderström 1995, Frisvoll & Elvebakk 1996, Damsholt 2002, Söderström et al. 2002b. GUSTAV V LAND: Konstantinova et al. 2020a. PRINS OSCARS LAND: Konstantinova & Savchenko 2008 a, Konstantinova et al. 2014, 2020b. BARENTSØYA: Philippi 1973, Konstantinova & Savchenko 2018. EDGEØYA: Philippi 1973. SPITSBERGEN: Gottsche et al. 1847 as Jungermannia julacea E clavuligera [Bellsund], Arnell & Mårtensson 1959 [W. Spitsbergen]. ALBERT I LAND: This publication. DICKSON LAND: Konstantinova & Savchenko 2008c, Belkina et al. 2015. HAAKON VII LAND: Wegener et al. 1992, Konstantinova & Savchenko 2006. HEER LAND: This publication. JAMES LAND: This publication. NATHORST LAND: This publication. NORDENSKIÖLD LAND: Eurola 1968, Hadač 1989, Konstantinova & Savchenko 2007, Thingsgaard & Damsholt 2007, Konstantinova & Savchenko 2008 a, 2008b, Prestø et al. 2014. OSCAR II LAND: Brattbakk et al. 1978, Kobayashi et al. 1990. PRINS KARLS FORLAND: Ellis et al. 2019c, Konstantinova & Savchenko 2020a. SØRKAPP LAND: Dubiel & Olech 1990. WEDEL JARLSBERG LAND: Rejment-Grochowska 1967, Karczmarz & Święs 1988, Karczmarz & Święs 1989, Karczmarz & Święs 1990b, Święs & Karczmarz 1991a.

Arnellia Lindb. View in CoL

*** Arnellia fennica (Gottsche) Lindb. View in CoL SVALBARD: Kaalaas 1893b, Bryhn 1906, Arnell 1928, Jørgensen 1934, Frye & Clark 1943, Steere 1954, Arnell 1956, Schuster 1980, Düll

1983, Söderström 1995, Damsholt 2002, Söderström et al. 2002a, 2002b, Hodgetts 2015, Hodgetts & Lockhart 2020. BARENTSØYA: Philippi 1973, Frisvoll & Elvebakk 1996, Konstantinova & Savchenko 2018. EDGEØYA: Philippi 1973, Frisvoll & Elvebakk 1996. SPITSBERGEN: Müller 1909b [Kongsfjorden], Arnell & Mårtensson 1959 [Kongsfjorden]. DICKSON LAND: Frisvoll 1981, Frisvoll & Elvebakk 1996. HAAKON VII LAND: Frisvoll & Elvebakk 1996, Konstantinova & Savchenko 2006, 2008 a, 2011. OSCAR II LAND: Berggren 1875a as Southbya fennica, Frisvoll & Elvebakk 1996 , Koroleva & Borovichev 2014. SABINE LAND: This publication, Frisvoll & Elvebakk 1996.

Barbilophozia Loeske

*** Barbilophozia barbata (Schmidel ex Schreb.) Loeske. View in CoL [ Jungermannia barbata Schmidel. ex Schreb. , Lophozia barbata (Schmidel ex Schreb.) Dumort. ]. SVALBARD: Düll 1983, Söderström 1995, Paton 1999, Damsholt 2002, Söderström et al. 2002a, Damsholt 2013, Hodgetts 2015, Hodgetts & Lockhart 2020. GUSTAV V LAND: Berggren 1875a as Jungermannia floerkei var. arcuata . SPITSBERGEN: Gottsche et al. 1847 [“Magdalenen Bay in Bell-Sound (Vahl)”]. ALBERT I LAND: This publication. DICKSON LAND: Frisvoll 1981, Frisvoll & Blom 1992, Frisvoll & Elvebakk 1996, Frisvoll & Blom 1997. HAAKON VII LAND: Frisvoll & Blom 1992, Frisvoll & Elvebakk 1996. JAMES LAND: Frisvoll 1981, Frisvoll & Blom 1997. NORDENSKIÖLD LAND: Hagen 1952, Frisvoll & Blom 1992, 1997, Frisvoll & Elvebakk 1996. NOTE: Berggren’s (and other early bryologist’s) concept of Barbilophozia barbata View in CoL was very wide and most of the old reports have been (or should be) rejected.

*** Barbilophozia hatcheri (A.Evans) Loeske View in CoL [ Lophozia hatcheri (A.Evans) Steph. ]. SVALBARD: Grolle 1960, Schuster 1969, Worley 1972, Düll 1983, Söderström 1995 as, Frisvoll & Elvebakk 1996, Paton 1999, Bapna & Kachroo 2000b, Damsholt 2002 as, Söderström et al. 2002a, 2002b, Hentschel et al. 2006, 2007, Vilnet et al. 2010, 2012a, 2012b, Damsholt 2013, Hodgetts 2015, Hodgetts & Lockhart 2020. BJØRNØYA: Watson 1922, Summerhayes & Elton 1923a, Arnell 1956, Grolle 1960, Söderström 1995, Frisvoll & Elvebakk 1996, Damsholt 2002. GUSTAV V LAND: TYPE of Jungermannia lycopodioides var. cavifolia, Berggren 1875a as Jungermannia lycopodioides var. cavifolia, Konstantinova & Savchenko 2012 . PRINS OSCARS LAND: This publication. BARENTSØYA: Philippi 1973, Konstantinova & Savchenko 2018. EDGEØYA: Philippi 1973, Heinemeijer 1979. ALBERT I LAND: Arnell & Mårtensson 1959, Thingsgaard & Damsholt 2007. DICKSON LAND: This publication. HAAKON VII LAND: This publication, Newsham & Goodall-Copestake 2021. HEER LAND: Philippi 1973. NORDENSKIÖLD LAND: Hagen 1952, Konstantinova & Savchenko 2008 a, 2008b. OSCAR II LAND: Arnell & Mårtensson 1959, Kobayashi et al. 1990, Newsham & Goodall-Copestake 2021. PRINS KARLS FORLAND: Konstantinova & Savchenko 2020a. SØRKAPP LAND: Dubiel & Olech 1990. WEDEL JARLSBERG LAND: Rejment-Grochowska 1967, Karczmarz & Święs 1988, 1989, Święs & Karczmarz 1991a, 1993b.

*** Barbilophozia sudetica (Nees ex Huebener) L.Söderstr., De Roo et Hedd. View in CoL [ Lophozia sudetica (Nees ex Huebener) Grolle , Pseudolophozia sudetica (Nees ex Huebener) Konstant. et Vilnet ]. SVALBARD: Bryhn 1906 as Lophozia alpestris, Arnell 1928 as Jungermannia alpestris, Harmsen & Seidenfaden 1932 View in CoL as Lophozia alpestris, Frye & Clark 1945 as Lophozia alpestris, Arnell 1956 as Lophozia alpestris ,

Checklist of liverworts on Svalbard 367

Schuster 1969, Worley 1972 as Lophozia alpestris, Düll 1983 , Smith 1990, Söderström 1995, Frisvoll & Elvebakk 1996, Paton 1999, Konstantinova 2000 as Lophozia rufescens, Damsholt 2002 , Söderström et al. 2002a, 2002b, 2007 as Lophozia sudetica var. anomala, Vilnet et al. 2010 , 2012b both as Pseudolophozia sudetica, Vilnet et al. 2012b as Pseudolophozia debiliformis, Hodgetts 2015 , Hodgetts & Lockhart 2020. BJØRNØYA: Berggren 1875a as Jungermannia alpestris, Watson 1922 as Lophozia alpestris, Summerhayes & Elton 1923a as Lophozia alpestris, Söderström 1995 , Frisvoll & Elvebakk 1996, Damsholt 2002, Söderström et al. 2002b. GUSTAV V LAND: Berggren 1875a as Jungermannia alpestris . PRINS OSCARS LAND: Konstantinova & Savchenko 2008a. BARENTSØYA: Philippi 1973 as Lophozia alpestris . EDGEØYA: Philippi 1973 as Lophozia alpestris . KONG KARLS LAND: Arnell 1900 as Jungermannia alpestris . ALBERT I LAND: Gottsche et al. 1846 as Jungermannia alpestris, Berggren 1875a as Jungermannia alpestris, Arnell & Mårtensson 1959 as Lophozia alpestris . BÜNSOW LAND: Watson 1922 as Lophozia alpestris . DICKSON LAND: This publication. HAAKON VII LAND: Arnell & Mårtensson 1959 as Lophozia alpestris, Newsham & Goodall-Copestake 2021 . HEER LAND: Philippi 1973 as Lophozia alpestris . NORDENSKIÖLD LAND: Berggren 1875a as Jungermannia alpestris, Watson 1922 as Lophozia alpestris, Hadač 1946 as Lophozia alpestris, Arnell & Mårtensson 1959 as Lophozia alpestris, Hadač 1989 as Lophozia alpestris, Konstantinova & Savchenko 2007 , Konstantinova & Savchenko 2008 a, 2008b. OSCAR II LAND: Arnell & Mårtensson 1959 as Lophozia alpestris . PRINS KARLS FORLAND: Berggren 1875a as Jungermannia alpestris, Watson 1922 as Lophozia alpestris, Summerhayes & Elton 1923a , 1923b both as Lophozia alpestris . WEDEL JARLSBERG LAND: Rejment-Grochowska 1967 as Lophozia alpestris, Karczmarz & Święs 1988 , 1989 both as Lophozia alpestris, Święs & Karczmarz 1991a , 1993b both as Lophozia alpestris .

Blasia L.

*** Blasia pusilla View in CoL L. SVALBARD: Düll 1983, Söderström 1995, Paton 1999, Damsholt 2002, Söderström et al. 2002a, Söderström et al. 2002 b, Konstantinova 2003, Hodgetts 2015, Hodgetts & Lockhart 2020. DICKSON LAND: Frisvoll 1978, Frisvoll & Blom 1992, 1997, Frisvoll & Elvebakk 1996. NORDENSKIÖLD LAND: Frisvoll & Elvebakk 1996, Frisvoll & Blom 1997. OSCAR II LAND: Frisvoll & Blom 1992, 1997, Frisvoll & Elvebakk 1996.

Blepharostoma (Dumort.) Dumort. View in CoL

** Blepharostoma brevirete (Bryhn et Kaal.) Vilnet et Bakalin [ Blepharostoma trichophyllum var. brevirete Bryhn et Kaal. View in CoL , Blepharostoma trichophyllum subsp. brevirete (Bryhn et Kaal.) R.M.Schust. View in CoL ]. SVALBARD: Schuster 1966, Düll 1983, Söderström 1995, Frisvoll & Elvebakk 1996, Damsholt 2002, Söderström et al. 2002a, 2002b, Damsholt 2013, Hodgetts 2015, Bakalin et al. 2020c, Hodgetts & Lockhart 2020. BJØRNØYA: Arnell 1951. Schuster 1966, Persson & Viereck 1983, Söderström 1995, Damsholt 2002, Söderström et al. 2002b, Damsholt 2013. NORDAUSTLANDET: Konstantinova & Savchenko 2015. GUSTAV V LAND: Konstantinova & Savchenko 2011, 2012, Konstantinova et al. 2014. PRINS OSCARS LAND: Konstantinova & Savchenko 2008 a, Konstantinova et al. 2014. BARENTSØYA: Philippi 1973, Konstantinova et al. 2014, 2018. SPITSBERGEN: Arnell & Mårtensson 1959 [W. Spitsbergen]. DICKSON LAND: Konstantinova

& Savchenko 2008 c, 2011. HAAKON VII LAND: Konstantinova & Savchenko 2006, 2008 a, 2011, Thingsgaard & Damsholt 2007. HEER LAND: Konstantinova et al. 2020b. JAMES LAND: Thingsgaard & Damsholt 2007. NATHORST LAND: This publication. NORDENSKIÖLD LAND: Konstantinova & Savchenko 2007, 2008 a, 2008b, Stebel et al. 2018, Konstantinova et al. 2020b. NY-FRIESLAND: This publication. OSCAR II LAND: Thingsgaard & Damsholt 2007, Borovichev 2010. PRINS KARLS FORLAND: Ellis et al. 2019c, Konstantinova & Savchenko 2020a. SØRKAPP LAND: This publication. WEDEL JARLSBERG LAND: Rejment-Grochowska 1967, Karczmarz & Święs 1988, Święs & Karczmarz 1991a, 1993b. NOTE: We are not aware of any primary report from Bjørnøya unless the report of Blepharostoma trichophyllum View in CoL by Watson (1922) can be referred there.

Cephalozia (Dumort.) Dumort.

*** Cephalozia ambigua C.Massal. View in CoL [ Cephalozia bicuspidata subsp. ambigua (C.Massal.) R.M.Schust. View in CoL ]. SVALBARD: Schuster 1974, Düll 1983, Smith 1990, Söderström 1995, Paton 1999, Damsholt 2002, Söderström et al. 2002a, 2002b, Vilnet et al. 2012a, Damsholt 2013, Potemkin 2014, Hodgetts 2015, Feldberg et al. 2016, Hodgetts & Lockhart 2020. BJØRNØYA: Söderström 1995, Frisvoll & Elvebakk 1996 [with doubt], Damsholt 2002, Söderström et al. 2002b. GUSTAV V LAND: Konstantinova & Savchenko 2012. PRINS OSCARS LAND: This publication. BARENTSØYA: Philippi 1973, Konstantinova & Savchenko 2018. EDGEØYA: Philippi 1973. SPITSBERGEN: Lindberg 1866 as Jungermannia bicuspidata A E * gracillima [Isfjorden], Arnell & Mårtensson 1959 [W. Spitsbergen]. HAAKON VII LAND: This publication. HEER LAND: Philippi 1973. NORDENSKIÖLD LAND: Eurola 1968, Hadač 1989, Konstantinova & Savchenko 2007, 2008b, Thingsgaard & Damsholt 2007. OSCAR II LAND: Brattbakk et al. 1978, Kobayashi et al. 1990. PRINS KARLS FORLAND: Ellis et al. 2019c, Konstantinova & Savchenko 2020a. SABINE LAND: Philippi 1973. WEDEL JARLSBERG LAND: Rejment-Grochowska 1967, Karczmarz & Święs 1988, 1989, Święs & Karczmarz 1991 a, Frisvoll & Elvebakk 1996. NOTE: We are not aware of any primary report from Bjørnøya unless the report of Cephalozia bicuspidata View in CoL by Watson (1922) can be referred there.

*** Cephalozia bicuspidata View in CoL (L.) Dumort. var. bicuspidata [ Jungermannia bicuspidata L., Eucephalozia bicuspidata (L.) Schiffn.]. SVALBARD: Berggren 1875a, Schiffner 1898, Frye & Clark 1945, Le Gallo 1951, Smith 1990, Söderström 1995, Damsholt 2002, Söderström et al. 2002a, 2002b, Vilnet et al. 2012a, Hodgetts, Feldberg et al. 2016, Hodgetts & Lockhart 2020. BJØRNØYA: Schiffner 1898, Watson 1922, Summerhayes & Elton 1923a, Söderström 1995, Söderström et al. 2002b [rejecting earlier reports]. GUSTAV V LAND: Konstantinova et al. 2020a. PRINS OSCARS LAND: Konstantinova & Savchenko 2008 a, Newsham & Goodall-Copestake 2021. BARENTSØYA: Konstantinova & Savchenko 2018. SPITSBERGEN: Arnell & Mårtensson 1959 [rejecting report by Lindberg 1867 (Isfjorden) and Arnell 1900 as Cephalozia ambigua (Prins Karls Forland) View in CoL ]. ALBERT I LAND: Gottsche et al. 1847. NORDENSKIÖLD LAND: Hadač 1946, Hadač 1989, Konstantinova & Savchenko 2007, Konstantinova & Savchenko 2008 a, Konstantinova & Savchenko 2008b, Stebel et al. 2018. OSCAR II LAND: Boińska & Gugnacka-Fiedor 1983. PRINS KARLS FORLAND: Arnell 1900 [rejected as Cephalozia ambigua View in CoL by ‘may represent ssp. arctica View in CoL ” fide Schuster 1969],