Planistromella opuntiae sp. nov. from Queensland, Australia, and a key to the known species

Abstract

A new species of a dothideaceous ascomycete, Planistromella opuntiae is described and illustrated from Queensland, Australia. Species of Planistromella are known to occur on members of Agavaceae. This new species is found on Opuntia, a member of the family Cactaceae. It is easily separated from the other known species with 1-septate ascospores by its comparatively narrower ascospores.