ORIGINAL ARTICLE
Revision of Marchantiana (Caloplacoideae, Teloschistaceae) – a misconceived lichen genus
1
Section for Ecology and Evolution, Department of Biology, University
of Copenhagen, Universitetsparken 15, 2100 Copenhagen K, Denmark
2
Botanical Museum, Lund University, Box 117, SE-221 00 Lund,
Sweden
Online publication date: 2024-12-04
Publication date: 2024-12-04
Plant and Fungal Systematics 2024; 69(2): 135-148
KEYWORDS
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 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.
FUNDING
The project was supported by the
Carlsberg Foundation (2008_01_0645).
CONFLICT OF INTEREST
NO
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| eISSN: | 2657-5000 |
| ISSN: | 2544-7459 |
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