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Revision of Marchantiana (Caloplacoideae, Teloschistaceae) – a misconceived lichen genus

Søchting, Ulrik and Arup, Ulf LU (2024) In Plant and Fungal Systematics 69(2). p.135-148
Abstract

The genus Marchantiana has been a victim of changeable concepts, partly due to erroneous DNA sequences published with its description. Based on new molecular sequencing, new chemical analyses and additional field work, mainly in Patagonia, Tasmania and New Zealand, we present a new taxonomic classification for the genus and related species. M. michelagoensis is confirmed to belong to Marchantiana, and the genus Streimanniella, for which this species was the generic type, is synonymized with Marchantiana. We combine Caloplaca haematommona, C. magnetensis, C. tomnashii and C. phaeocincta into Marchantiana as M. haematommona, M. magnetensis, M. tomnashii and M. phaeocincta, respectively. A new genus Taedigera is described to cater for... (More)

The genus Marchantiana has been a victim of changeable concepts, partly due to erroneous DNA sequences published with its description. Based on new molecular sequencing, new chemical analyses and additional field work, mainly in Patagonia, Tasmania and New Zealand, we present a new taxonomic classification for the genus and related species. M. michelagoensis is confirmed to belong to Marchantiana, and the genus Streimanniella, for which this species was the generic type, is synonymized with Marchantiana. We combine Caloplaca haematommona, C. magnetensis, C. tomnashii and C. phaeocincta into Marchantiana as M. haematommona, M. magnetensis, M. tomnashii and M. phaeocincta, respectively. A new genus Taedigera is described to cater for three previous Marchantiana species and one Caloplaca species, with the new names T. pyramus, T. ramulicola, T. subpyracea and T. epibrya, respectively. Two species, T. flammea and T. gallowayi, both twig epiphytes from New Zealand, and one species, M. tasmanica, from Tasmania, are described as new to science based on molecular and secondary chemical characters. Marchantiana burneyensis, M. kalbiorum and M. seppeltii are excluded from the genus Marchantiana based on newly generated sequences of type material. A key is provided to the species groups in Patagonia, Tasmania and New Zealand.

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author
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organization
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type
Contribution to journal
publication status
published
subject
keywords
Falkland Islands, molecular taxonomy, New Zealand, Patagonia, Taedigera, Tasmania, Yoshimuria
in
Plant and Fungal Systematics
volume
69
issue
2
pages
14 pages
publisher
De Gruyter
external identifiers
  • scopus:85211449432
ISSN
2544-7459
DOI
10.35535/pfsyst-2024-0013
language
English
LU publication?
yes
id
0adc0d70-f3e8-424e-9c99-ffdf08a663bb
date added to LUP
2025-01-21 14:22:35
date last changed
2025-05-23 09:55:41
@article{0adc0d70-f3e8-424e-9c99-ffdf08a663bb,
  abstract     = {{<p>The genus Marchantiana has been a victim of changeable concepts, partly due to erroneous DNA sequences published with its description. Based on new molecular sequencing, new chemical analyses and additional field work, mainly in Patagonia, Tasmania and New Zealand, we present a new taxonomic classification for the genus and related species. M. michelagoensis is confirmed to belong to Marchantiana, and the genus Streimanniella, for which this species was the generic type, is synonymized with Marchantiana. We combine Caloplaca haematommona, C. magnetensis, C. tomnashii and C. phaeocincta into Marchantiana as M. haematommona, M. magnetensis, M. tomnashii and M. phaeocincta, respectively. A new genus Taedigera is described to cater for three previous Marchantiana species and one Caloplaca species, with the new names T. pyramus, T. ramulicola, T. subpyracea and T. epibrya, respectively. Two species, T. flammea and T. gallowayi, both twig epiphytes from New Zealand, and one species, M. tasmanica, from Tasmania, are described as new to science based on molecular and secondary chemical characters. Marchantiana burneyensis, M. kalbiorum and M. seppeltii are excluded from the genus Marchantiana based on newly generated sequences of type material. A key is provided to the species groups in Patagonia, Tasmania and New Zealand.</p>}},
  author       = {{Søchting, Ulrik and Arup, Ulf}},
  issn         = {{2544-7459}},
  keywords     = {{Falkland Islands; molecular taxonomy; New Zealand; Patagonia; Taedigera; Tasmania; Yoshimuria}},
  language     = {{eng}},
  number       = {{2}},
  pages        = {{135--148}},
  publisher    = {{De Gruyter}},
  series       = {{Plant and Fungal Systematics}},
  title        = {{Revision of Marchantiana (Caloplacoideae, Teloschistaceae) – a misconceived lichen genus}},
  url          = {{http://dx.doi.org/10.35535/pfsyst-2024-0013}},
  doi          = {{10.35535/pfsyst-2024-0013}},
  volume       = {{69}},
  year         = {{2024}},
}