Three new species of Lepraria (Ascomycota, Stereocaulaceae) containing fatty acids and atranorin

Abstract

Three new species of Lepraria (Ascomycota, Stereocaulaceae)containing fatty acids and atranorin S {těpánka SLAVI uKOVÁ-BAYEROVÁ and Alan ORANGE Abstract: Three new species of Lepraria, L. celata, L. humida, and L. sylvicola, are described from Europe. They each possess a finely granular unstratified thallus containing fatty acids and atranorin, but can be distinguished from each other by the type of fatty acids present and by their ecology. Anthraquinones are present in subthalline hyphae of L. humida and L. sylvicola, and are also reported for L. atlantica. Toensbergianic acid can be produced by L. jackii as a minor compound. A key is presented to species of Lepraria containing fatty acids and atranorin as major substances.

World survey of the genusLepraria(Stereocaulaceae, lichenized Ascomycota)

“…However, Baruffo et al (2006) did not regard the differences sufficient and L. toensbergiana was reduced to a synonym of L. jackii. Three further species, L. celata, L. humida, and L. sylvicola were segregated from L. jackii by Slavíková- Bayerová & Orange (2006). The monophyly of L. toensbergiana and the small sequence difference between these taxa was confirmed (similar to the intraspecific variability of some other Lepraria species), however, the two taxa formed a single clade on a highly supported long branch of the phylogenetic tree.…”

“…For further details see Tønsberg (1992), and Slavíková- Bayerová & Orange (2006). Distinctly lobate species are discussed under L. membranacea and L. bergensis.…”

“…For further details see Orange (2001), Slavíková- Bayerová & Orange (2006) and Saag et al (2007). For further details see Orange (2001), Slavíková- Bayerová & Orange (2006) and Saag et al (2007).…”

“…The subthalline hyphae usually produce unidentified anthraquinones (Orange 2001;Slavíková-Bayerová & Orange 2006;Saag et al 2007). The two common chemotypes contain (1) atranorin, porphyrilic acid and accessories, rangiformic acid; (2) atranorin, porphyrilic acid and accessories, roccellic/ angardianic acid.…”

The genus Lepraria (Stereocaulaceae, lichenized Ascomycota) in Belarus

“…L. jackii has been reported from Europe, Asia, North America and Australia, and mostly confined to the boreal zone (Saag et al, 2009;Lendemer, 2013;McCarthy, 2015 (Tønsberg, 1992;Lohtander, 1994). Since then, much attention has been paid to the taxonomy and chemistry of this group, and six species have been newly described, namely Orange and L. toensbergiana Bayerová & Kukwa (Tønsberg, 2002;Slavíková-Bayerová & Orange, 2006;Slavíková-Bayerová & Fehrer, 2007). However, the systematic position of the latter taxon has been briefly discussed (Bayerová & Haas, 2005;Baruffo et al, 2006;Fehrer et al, 2008;Tretiach et al, 2009;Saag et al, 2009), and a new combination L. jackii var.…”