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Further species diversity in Neotropical Oropogon (Lecanoromycetes: Parmeliaceae) in Central America

Published online by Cambridge University Press:  24 June 2013

Steven D. LEAVITT ,
Theodore L. ESSLINGER ,
Matthew P. NELSEN  and
H. Thorsten LUMBSCH
Steven D. LEAVITT
Affiliation:
Department of Botany, The Field Museum, 1400 S. Lake Shore Drive, Chicago, Illinois 60605, USA. Email: sleavitt@fieldmuseum.org
Theodore L. ESSLINGER
Affiliation:
Department of Biological Sciences, North Dakota State University, P.O. Box 6050, #2715 Stevens Hall, Fargo, North Dakota 58108-6060, USA
Matthew P. NELSEN
Affiliation:
Committee on Evolutionary Biology, University of Chicago, 1025 E. 57th Street, Chicago, Illinois 60637, USA; and Department of Botany, The Field Museum, 1400 S. Lake Shore Drive, Chicago, Illinois 60605, USA
H. Thorsten LUMBSCH
Affiliation:
Department of Botany, The Field Museum, 1400 S. Lake Shore Drive, Chicago, Illinois 60605, USA. Email: sleavitt@fieldmuseum.org
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Abstract

The new species Oropogon evernicus Essl. & S. Leavitt and O. protocetraricus S. Leavitt & Essl. are described from montane regions of Central America, further increasing the diversity of this genus in the New World. Oropogon evernicus is separated from O. americanus by the presence of medullary tissue directly beneath the pseudocyphellae, while O. protocetraricus is separated from O. caespitosus by the presence of protocetraric acid. The segregation of both species is confirmed by molecular sequence data (nuclear ITS, nuLSU, and β-tubulin). Both species appear to have split from their most recent common ancestor during the Miocene, supporting Miocene-dominated diversification of neotropical Oropogon species found in Central America.

Keywords

divergence timesintegrative taxonomyLecanoromyceteslichensMexicomolecular phylogeny
Type
Articles
Information
The Lichenologist , Volume 45 , Issue 4 , July 2013 , pp. 553 - 564
Copyright
Copyright © British Lichen Society 2013 

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