Trypetheliaceae of Bolivia: an updated checklist with descriptions of twenty-four new species

Abstract

The present treatment shows that the lichen family Trypetheliaceae is an important component of lowland and montane tropical forests in Bolivia.

A pot-pourri of new species of Trypetheliaceae resulting from molecular phylogenetic studies

“…Astrothelium cryptolucens appears to be the only species in this complex in which the perithecia maintain separate ostioles, in spite of their dense arrangement in pseudostromata. This species is close to A. carrascoense Flakus et al (Flakus et al 2016), which differs by the inspersed hamathecium.…”

Architrypethelium murisporum (Ascomycota, Trypetheliaceae), a remarkable new lichen species from Thailand challenging ascospore septation as an indicator of phylogenetic relationships

“…Also the ascospore size (35-50 × 13-15.5 μm) differs from A. keralense (50-60 x 15-20 μm) and A. variatum (24-35 x 11-13 μm). The placement of the new species in Architrypethelium is supported by molecular evidence (Fig 1), but it is unlikely to be confused with any of the currently accepted species in that genus due to the differences in ascospore size and septation (Aptroot et al 2008, Aptroot and Lücking 2016, Flakus et al 2016, Lücking et al 2016a). The new taxon has muriform and relatively small ascospores (ca.…”

“…The new taxon has muriform and relatively small ascospores (ca. 50 μm, long) (Fig 2), whereas other Architrypethelium species have transversely septate ascospores (3-5 septate), that are longer than 90 μm (Aptroot 1991, Aptroot et al 2008, Aptroot and Lücking 2016, Flakus et al 2016, Lücking et al 2016a). …”

“…Recently, the numbers of species increased with the description of two new species and two combinations into the genus (Aptroot and Lücking 2016, Flakus et al 2016, Lücking et al 2016a (Aptroot 1991, Aptroot et al 2008, Aptroot and Lücking 2016, Flakus et al 2016, Lücking et al 2016a. All species are known from the Neotropics, except A. uberinum, which is also known from Oceania (Aptroot and Lücking 2016, Flakus et al 2016, Lücking et al 2016a, suggesting a pantropical distribution (Aptroot and Lücking 2016).…”

A phylogenetic framework for reassessing generic concepts and species delimitation in the lichenized familyTrypetheliaceae(Ascomycota: Dothideomycetes)

“…This suggests that a much more refined species concept has to be applied within the family, similar to the situation found in Graphidaceae, especially the megadiverse genera Graphis and Ocellularia, where gross morphology had been similarly neglected but was found to be diagnostic (Lücking 2009(Lücking , 2014(Lücking , 2015Lücking et al 2009). Based on these findings, the refined species concept laid out in the monographic synopsis of the family increases the number of recognized species in Trypetheliaceae based on names reinstated from prior synonymy by c. 70, in addition to well over 100 new species (Aptroot & Cáceres 2016;Aptroot et al 2016a, b;Flakus et al 2016;Lücking et al 2016). Thallus not corticate.…”