Records of new and interesting Peltigera species for Greenland

Ten new species of Peltigera are reported from Greenland. Peltigera kristinssonii and P. membranacea are reported as new to South East Greenland, P. neckeri as new to North West Greenland, and P. occidentalis and P. ponojensis as new to Central West and South East Greenland

Jäkälät (ml. likenikoliset sienet)

Julkaisu: Suomen Lajitietokeskus 2019: Lajiluettelo 2018. Suomen Lajitietokeskus, Luonnontieteellinen keskusmuseo, Helsingin yliopisto, Helsinki

Zur Verbreitung und Chemie von Flechten der Mongolischen Volksrepublik

Für das Gebiet der MVR werden Fundpunkte von 102 Flechtenart;en mitgeteilt. Davon sind 11 Arten neu für die MVR. 21 Arten wurden chemisch analysiert. На территории МНР были собраны на разных местах 102 вида лижайников. Из них 11 вид является нозыми для МНР и для 21 вида проводился химический анализ

Taxonomy, phylogeny and biogeography of the lichen genus Peltigera in Papua New Guinea

peer reviewe

Zur Verbreitung und Chemie von Flechten der Mongolischen Volksrepublik

Für das Gebiet der MVR werden Fundpunkte von 102 Flechtenart;en mitgeteilt. Davon sind 11 Arten neu für die MVR. 21 Arten wurden chemisch analysiert. На территории МНР были собраны на разных местах 102 вида лижайников. Из них 11 вид является нозыми для МНР и для 21 вида проводился химический анализ

Species delimitation at a global scale reveals high species richness with complex biogeography and patterns of symbiont association in Peltigera section Peltigera (lichenized Ascomycota: Lecanoromycetes)

This comprehensive phylogenetic revision of sections Peltigera and Retifoveatae of the cyanolichen genus Peltigera is based on DNA sequences from more than 500 specimens from five continents. We amplified five loci (nrITS, β-tubulin and three intergenic spacers part of colinear orthologous regions [COR]) for the mycobiont, and the rbcLX locus for the cyanobacterial partner Nostoc. Phylogenetic inferences (RAxML, BEAST) and species delimitation methods (bGMYC, bPTP, bPP) suggest the presence of 88 species in section Peltigera, including 50 species new to science, hence uncovering a surprisingly high proportion of previously unnoticed biodiversity. The hypervariable region in ITS1 (ITS1-HR) is a powerful marker to identify species within sections Peltigera and Retifoveatae. Most newly delimited species are restricted to a single biogeographic region, however, up to ten species have a nearly cosmopolitan distribution. The specificity of mycobionts in their association with Nostoc cyanobionts ranges from strict specialists (associate with only one Nostoc phylogroup) to broad generalists (up to eight Nostoc phylogroups uncovered), with widespread species recruiting a broader selection of Nostoc phylogroups than species with limited distributions. In contrast, species from the P. didactyla clade characterized by small thalli and asexual vegetative propagules (soredia) associate with fewer Nostoc phylogroups (i.e., are more specialized) despite their broad distributions, and show significantly higher rates of nucleotide substitutions