Abstract
A widely accessible list of known plant species is a fundamental requirement for global biodiversity conservation targets. An index of published names of liverworts and hornworts between 2017 and 2018 is provided as part of a community effort in working toward maintaining an updated world checklist of these groups. The list herein includes 23 higher taxon names, 143 specific names, 21 infraspecific names, one infrageneric autonym and 13 infraspecific autonyms for 2017 and 2018, including also names of fossils and invalid and illegitimate names. Sixteen older names omitted in the earlier indices are included.
Highlights
Liverworts (Marchantiophyta) and hornworts (Anthocerotophyta) are of critical biological, ecological, and phylogenetic significance (e.g., Asakawa 1999, Gradstein et al 2001, Wellman et al 2003, Qiu et al 2007, Huttunen et al 2017, Morris et al 2013)
The publication of new liverwort and hornwort names remains vastly scattered across dozens of journals, a common problem that extends to accessibility of biodiversity data generally (Collin et al 2016)
Söderström et al (2018) summarized the many nomenclatural indexing and similar projects, including: TROPICOS; Index Hepaticarum, which includes all effectively published liverwort epithets spanning 12 volumes with the closing date of 1973; Index of Hepatics by Crosby & Engel (2006) providing an valuable nomenclatural resource and catalogue of names at all ranks for liverworts and hornworts published during 1974 to 2000; and the recent indices of the citations for names published for bryophytes for the years 2001–2004 (Crosby & Magill 2005) and 2005 (Crosby & Magill 2006)
Summary
Liverworts (Marchantiophyta) and hornworts (Anthocerotophyta) are of critical biological, ecological, and phylogenetic significance (e.g., Asakawa 1999, Gradstein et al 2001, Wellman et al 2003, Qiu et al 2007, Huttunen et al 2017, Morris et al 2013). TYPE: “RUSSIA: Trans-Baikal Territory, Kalar District, Stanovoye Nagor’e Uplands, South Muya Range, valley of Koyra River, 574 m a.s.l., 56°13’54.6’’N, 115°52’19.6’’E, 5 August 2012, Mamontov 309-20 TYPE: “[Australia, Queensland] Upper West Mulgrave River, below Bobbin Bobbin Falls, 17°22’S 145°46’E, 600 m, 3 Sep 2014, M.A.M. Renner 7334 & L.J. Gray (holotype: NSW 880509; isotypes: BRI, CANB)”.
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