A new species of rust fungi from the middle Eocene Sakhalinian amber

Vera Hayova

doi:10.4202/app.00917.2021

Abstract

A new species of rust fungi from the middle Eocene Sakhalinian amber

Highlights

The order Pucciniales currently accommodates about 7800 species of obligate parasites of vascular plants (Kirk et al 2008)
In our previous publication (Tykhonenko et al 2021), we reported the finding of few teliospores of rust fungus similar to those of the modern species Nyssopsora trevesiae (Gäumann, 1921) Tranzschel, 1925 in a sample of Sakhalinian amber
The type of Nyssopsora eocaenica Tykhonenko and Hayova sp. nov. is embedded in a small (7×4×3 mm) clear piece of amber

Summary

Introduction

The order Pucciniales (rust fungi) currently accommodates about 7800 species of obligate parasites of vascular plants (Kirk et al 2008). Due to scarce fossil data, the time of origin of the order Pucciniales and divergence dates for its main clades were calibrated mainly by the age of the host plants and fossil evidences of other groups of fungi (McTaggart et al 2016; Aime et al 2018). In our previous publication (Tykhonenko et al 2021), we reported the finding of few teliospores of rust fungus similar to those of the modern species Nyssopsora trevesiae (Gäumann, 1921) Tranzschel, 1925 in a sample of Sakhalinian amber. We describe a new species of the fossil rust fungus from another sample of Sakhalinian amber. Nomenclatural acts.—This published work and the nomenclatural act it contains, have been registered in Index Fungorum: IF558769

Material and methods

Systematic palaeontology

Findings

Concluding remarks