Phylogenetic reassessment of the Teloschistaceae (lichen-forming Ascomycota, Lecanoromycetes)

A further new species in the lichen genus Arctomia: A. borbonica from Reunion (Mascarene archipelago)

“…We refrained from describing a new genus because of the following points: (a) both subantarctic species recently described by Gremmen (2001, 2006) in the genus, both assumed not to genuinely belonging to Arctomia s. str. and with generic affinities "under study", should be further studied; indeed, several characters put them aside of the genus such as a pluricellular cortex; the description of a new genus within such a small family as the Arctomiaceae is premature in that context; (b) ascomata and conidiomata are unknown, or not yet discovered, in A. borbonica and thus our dataset lacks important characters (Lumbsch et al 2005, Table 2); (c) morphological and anatomical characters may be very much misleading for phylogenetic reconstruction and sound generic delimitations as demonstrated by many studies in lichenized or unlichenized ascomycetes (Gaya et al 2008, Lantz et al 2011, Prieto et al 2012, Sérusiaux et al 2010; and (d) two statistical topology tests applied to the likelihood tree gave opposite results to assess the monophyly of Arctomia when including all species studied, e.g. A.…”

Trichoconis hafellnerisp. nov. onAthallia pyraceaandXanthoria parietina, a Generic Discussion ofTrichoconisand Keys to the Species of this Genus

“…10 shows, Phacothecium varium and Telogalla olivieri colonize Xanthoria parietina but also X. calcicola. According to Franc & Kärnefelt (1998) and Gaya et al (2008), these two Xanthoria species are closely related. The occuring of the two lichenicolous fungi on these two hosts supports this molecular finding but also the hypothesis of Diederich (2000) who states that the hosts of lichenicolous fungi should be monophyletic in most cases.…”

“…They try to answer various questions on various taxonomic levels. Some have the entire family in focus (Gaya et al 2008), others concentrate on traditional genera or species groups (Fedorenko et al 2009, Franc & Kärnefelt 1998, Gaya 2009, Gaya et al 2003, Lindblom & Ekman 2005, Søchting & Lutzoni 2003, Søchting et al 2002 and several on the infraspecific genetic diversity, namely of Xanthoria parietina (Honegger et al 2004, Lindblom 2009). …”

“…With a more balanced taxon selection covering the entire family Teloschistaceae the grouping of the xanthorioid species is less clear, mainly because some of the clades containing xanthorioid species have sister groups with caloplacoid taxa (Gaya et al 2008, Søchting & Lutzoni 2003. This is practically the final proof of parallel evolutionary lines of various levels of thallus organization.…”

New Records for the Chilean Altiplano Cryptogamic Flora

“…comprises a large diversity of almost 1,100 species worldwide, and can be partly divided in more or less distinctive species groups (Ozenda & Clauzade 1970, Kärnefelt 1989, Gaya et al 2008 ranging from crustose to fruticose thalli. In Chile, ca.…”