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Geastrum dolomiticum, a new earthstar species from Central Europe

Authors
  • Finy, Péter1
  • Papp, Viktor2
  • Knapp, Dániel G.3
  • Bóka, Károly3
  • Kovács, Gábor M.3
  • Dima, Bálint3
  • 1 1 , Székesfehérvár (Hungary)
  • 2 Hungarian University of Agriculture and Life Sciences, Ménesi út 44, Budapest, 1118, Hungary , Budapest (Hungary)
  • 3 Eötvös Loránd University, Pázmány Péter sétány 1/c, Budapest, 1117, Hungary , Budapest (Hungary)
Type
Published Article
Journal
Plant Systematics and Evolution
Publisher
Springer Vienna
Publication Date
Jun 07, 2021
Volume
307
Issue
4
Identifiers
DOI: 10.1007/s00606-021-01766-z
Source
Springer Nature
Keywords
License
Green

Abstract

The recently revised Geastrum minimum species complex in sect. Geastrum subsect. Quadrifida revealed that the name G. minimum is a nomen ambiguum and dubium and was collectively used for at least two European species (viz. G. granulosum and G. marginatum). During the morphological revision of the Hungarian materials labelled as G. minimum, different crystal structures were found on the endoperidial body of some specimens than those of characteristic for G. granulosum and G. marginatum. These collections were exclusively found on open rocky grassy vegetation on dolomite bedrock in Hungary. Multigene phylogenetic analyses involving nrITS, nrLSU, rpb1, atp6 and tef1-α sequences of the collections with unique crystal morphology and ecology revealed that these form a distinct clade in close relationship with G. granulosum s.l. (i.e. specimens from Europe and North America). Based on molecular evidence, macro- and micromorphology as well as X-ray Powder Diffraction (XRD) characterisation of the mesoperidial crystals, here we propose the new species Geastrum dolomiticum.

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