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Taxonomy of the genus Myrionora, with a second species from South America

Published online by Cambridge University Press:  25 February 2013

Zdeněk PALICE ,
Christian PRINTZEN ,
Toby SPRIBILLE ,
Måns SVENSSON ,
Tor TØNSBERG ,
Irina URBANAVICHENE ,
Lidia S. YAKOVCHENKO  and
Stefan EKMAN
Zdeněk PALICE
Affiliation:
Institute of Botany, Czech Academy of Sciences, 25243 Průhonice, Czech Republic; and Department of Botany, Faculty of Natural Sciences, Charles University, Benátská 2, 128 01 Prague, Czech Republic
Christian PRINTZEN
Affiliation:
Department of Botany and Molecular Evolution, Senckenberg Research Institute, Senckenberganlage 25, D-60325 Frankfurt am Main, Germany
Toby SPRIBILLE
Affiliation:
Institute of Plant Sciences, University of Graz, Holteigasse 6, A-8010 Graz, Austria; current address: Division of Biological Sciences, University of Montana, 32 Campus Drive, Missoula, MT 59812, USA
Måns SVENSSON
Affiliation:
Department of Ecology, Swedish University of Agricultural Sciences, P. O. Box 7044, SE-75007 Uppsala, Sweden
Tor TØNSBERG
Affiliation:
Museum of Natural History, University of Bergen, Allégaten 41, P. O. Box 7800, N-5020 Bergen, Norway
Irina URBANAVICHENE
Affiliation:
Laboratory of Lichenology and Bryology, Komarov Botanical Institute, Professor Popov St. 2, 197376 St. Petersburg, Russia; and Baykal'skiy State Nature Biosphere Reserve, Tankhoi, 671120 Kabansk District, Buryatia Republic, Russia
Lidia S. YAKOVCHENKO
Affiliation:
Botanical Garden Institute, Far Eastern Branch, Russian Academy of Sciences, 142, Makovskogo Str., Vladivostok, Primorskiy Kray 690024, Russia
Stefan EKMAN*
Affiliation:
Museum of Evolution, Uppsala University, Norbyvägen 16, SE-75236 Uppsala, Sweden. Email: stefan.ekman@em.uu.se
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Abstract

A taxonomic and biogeographic overview of the genus Myrionora is provided. Two species are recognized, M. albidula (Willey) R. C. Harris and M. pseudocyphellariae (Etayo) S. Ekman & Palice comb. nov. The genus is characterized by polysporous asci, the presence of crystals in the hymenium and proper exciple that partly consist of lobaric acid, and a photobiont with large cells (mostly in the range 12–20 µm). Myrionora albidula is currently known from Germany, Norway, Sweden, the Russian Federation (Altayskiy Kray, Chelyabinskaya Oblast', Khabarovskiy Kray and Zabaykal'skiy Kray), and the United States (Alaska, Connecticut, Maine and Massachusetts). It inhabits bark of deciduous trees and shrubs and conifers over a wide range of latitudes. Myrionora pseudocyphellariae is known from Chile and Ecuador, where it has been encountered on lichens and decaying bark. Based on morphological characteristics, we conclude that Myrionora belongs in the Ramalinaceae.

Keywords

BacidiaJarmanialichenspolysporous asciRamalinaceaeScoliciosporumtaxonomy
Type
Articles
Information
The Lichenologist , Volume 45 , Issue 2 , March 2013 , pp. 159 - 167
Copyright
Copyright © British Lichen Society 2013

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