Author(s): Kondratyuk, S. Y., Gromakova, A. B., Khodosovtsev, A. Y., Kim, J. A., Kondratiuk, A. S. & Hur, J.-S.
Title: Agrestia zerovii (Megasporaceae, lichen-forming Ascomycetes), a new species from southeastern Europe proved by alternative phylogenetic analysis
Year: 2015
Volume: 46
Pages: 69-94.
DOI: https://doi.org/10.17110/StudBot.2015.46.2.69
Abstract: Agrestia zerovii is described, illustrated, and compared here with closely related taxa. It is
a member of the A. hispida complex of the steppe zone of Ukraine, southeastern Europe, and differs
from A. hispida s. str. in having much thicker main thalline lobes, in forming thick “horizontal crust”,
and in the lack of black tips of secondary branchlets. The position of the newly described A. zerovii
in the alternative combined phylogenetic tree of the Megasporaceae with all members for which reliable
data on the nrITS, nrLSU, and mtSSU sequences are hitherto available is discussed. Four new
robust branches and their taxonomic diversity are discussed, i.e.: the Agrestia, the Chlorangium, the
Sphaerothallia s. str., and the “Circinaria” lacunosa clades being in separate position from the Circinaria
s. str. clade (additionally to five genera of the Megasporaceae, i.e. Aspicilia, Circinaria, Lobothallia,
Megaspora and Sagedia accepted by previous authors). The genera Agrestia, Chlorangium, and
Sphaerothallia, proposed to be resurrected, and a number of aspicilioid lichens the status of which
are in need of revision are discussed. Five new combinations for the species of the genus Chlorangium
(C. alpicola, C. aschabadense, C. asperum, C. gyrosum, and C. sphaerothallinum) are proposed.Keywords: Agrestia, alternative combined phylogenetic analysis, Chlorangium, ITS and LSU nrDNA, 12S SSU mtDNA, sequences
Journal: Studia botanica hungaricaJournal abbreviation: Studia bot. hung.ISSN: 0301-7001Publisher: Hungarian Natural History Museum, BudapestEditor(s): Barina, Z., Alegro, A., Buczkó, K., Hably, L., Lakušić, D., Lőkös, L., Papp, B., Shevera, M. & Szurdoki, E.