The lichen genera Gondwania and Transdrakea gen. nov. (Teloschistaceae) - speciation in three southern continents
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The lichen genera Gondwania and Transdrakea gen. nov. (Teloschistaceae) - speciation in three southern continents. / Søchting, Ulrik; Sancho, Leo Garcia; Arup, Ulf.
In: Plant and Fungal Systematics, Vol. 68, No. 2, 2023, p. 304-319.Research output: Contribution to journal › Journal article › Research › peer-review
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TY - JOUR
T1 - The lichen genera Gondwania and Transdrakea gen. nov. (Teloschistaceae) - speciation in three southern continents
AU - Søchting, Ulrik
AU - Sancho, Leo Garcia
AU - Arup, Ulf
N1 - Publisher Copyright: © 2023 W. Szafer Institute of Botany.
PY - 2023
Y1 - 2023
N2 - Within the lichen family Teloschistaceae, a high number of genera are restricted to the extreme southern part of the Southern Hemisphere. The taxonomy and phylogeny of the southern genus Gondwania have been analyzed based upon fieldwork in Antarctica, Patagonia, New Zealand and Tasmania and subsequent studies including molecular methods. Five species are accepted in the genus Gondwanea including G. inclinans and G. joannae that are combined into the genus. Two species are included in the neighboring new genus Transdrakea, T. alacalufes, a saxicolous species from Patagonia, which is described as new to science and T. schofieldii. Based on molecular data, Austroplaca imperialis is described as a new species to accommodate Patagonian specimens previously named G. regalis. Even though morphologically very similar, the two species are distinct based on molecular and chemical characters and distribution. Gondwania and Transdrakea are chemically homogenous with parietin as the very dominant compound; Transdrakea has a very reduced thallus, whereas Gondwania includes species with crustose thalli, as well as species with fruticulose growth habits. G. inclinans and G. cribrosa are only known from Australia/New Zealand. G. regalis, G. joannae and T. schofieldii are only known from Antarctica. G. sublobulata is confirmed from Patagonia and the Falkland Islands, but Antarctic specimens previously named G. sublobulata belong to G. joannae. G. sejongensis is shown to be a synonym to G. joannae. A key to Gondwania and Transdrakea species is presented.
AB - Within the lichen family Teloschistaceae, a high number of genera are restricted to the extreme southern part of the Southern Hemisphere. The taxonomy and phylogeny of the southern genus Gondwania have been analyzed based upon fieldwork in Antarctica, Patagonia, New Zealand and Tasmania and subsequent studies including molecular methods. Five species are accepted in the genus Gondwanea including G. inclinans and G. joannae that are combined into the genus. Two species are included in the neighboring new genus Transdrakea, T. alacalufes, a saxicolous species from Patagonia, which is described as new to science and T. schofieldii. Based on molecular data, Austroplaca imperialis is described as a new species to accommodate Patagonian specimens previously named G. regalis. Even though morphologically very similar, the two species are distinct based on molecular and chemical characters and distribution. Gondwania and Transdrakea are chemically homogenous with parietin as the very dominant compound; Transdrakea has a very reduced thallus, whereas Gondwania includes species with crustose thalli, as well as species with fruticulose growth habits. G. inclinans and G. cribrosa are only known from Australia/New Zealand. G. regalis, G. joannae and T. schofieldii are only known from Antarctica. G. sublobulata is confirmed from Patagonia and the Falkland Islands, but Antarctic specimens previously named G. sublobulata belong to G. joannae. G. sejongensis is shown to be a synonym to G. joannae. A key to Gondwania and Transdrakea species is presented.
KW - Antarctica
KW - Austroplaca
KW - Caloplaca
KW - Falkland Islands
KW - Gondwana
KW - molecular taxonomy
KW - Patagonia
KW - South America
U2 - 10.35535/pfsyst-2023-0015
DO - 10.35535/pfsyst-2023-0015
M3 - Journal article
AN - SCOPUS:85182552171
VL - 68
SP - 304
EP - 319
JO - Plant and Fungal Systematics
JF - Plant and Fungal Systematics
SN - 1641-8190
IS - 2
ER -
ID: 390578736