Pérez-Ortega S. & Kantvilas G. 2018: Lecanora helmutii, a new species from the Lecanora symmicta group from Tasmania. – Herzogia 31: 639–649.

Lecanora helmutii Pérez-Ortega & Kantvilas from Tasmania is described as new to science. It shows characters typical of the Lecanora symmicta group, such as biatorine apothecia, Lecanora-type asci, and simple, hyaline ascospores. It is further characterized by whitish, discrete soralia and the presence of usnic acid and zeorin as major compounds. Using the universal fungal barcode nrITS and Bayesian and maximum likelihood inference of the phylogenetic relationships, we confirm its placement in the Lecanora symmicta group. Lecanora strobilina and L. strobilinoides are sequenced for the first time and their affiliation to the Lecanora symmicta group is likewise confirmed.