The Biodiversity Research Collection endowment funded major progress in the curation of South African Pelagornium. Dr. Kerri Mocko checked labels for accuracy and digitally imaged ~730 herbarium sheets. Currently comprising ~160 species of the approximately 200 species native to Southern Africa, the CONN collection was assembled in support of the research programs of Dr. Cynthia Jones and Dr. Carl Schlichting. Dr. Mocko, who was present when many of the specimens were collected, verified the accuracy of GPS coordinates and other data entered on each label, a process that was essential prior to adding the collection to the Virtual Herbarium.  While not the largest collection of Pelargonium specimens in the United States, it is the most recent of any of the more extensive collections.

Sarah Taylor and Clint Morse attended the 4th Research Connections, an event organized by the Learning Community Program at UCONN. They presented the Biodiversity Research Collections to undergraduates and the opportunities they offered students to engage in research and other collection related activities.

Further results from ongoing studies on the diversity of the lichen forming fungal genus Peltigera is being published. Vouchers will be deposited in CONN. Magain N., C. Truong, T. Goward, D. Niu, B. Goffinet, E. Sérusiaux, O. Vitikainen, F. Lutzoni & J. Miadlikowska. 2018. Global species delimitation of Peltigera section Peltigera (lichenized Ascomycota, Lecanoromycetes) reveals high species richness with complex biogeographical history and symbiotic patterns of associations. Taxon 67: 836–870. pdf

Abstract reads: 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.