Pertusaria pseudodactylina, isotype specimen collected by G.C. Bratt.

The first published description of this species was by Alan Archer in 1991, who based his description on specimens collected in 1973 by Geoffrey Bratt. Part of Bratt's collection is held at the Tasmanian Herbarium and part was given to Jack Elix who later donated his part to the Australian National Herbarium, Canberra. The top left view shows the Jack Elix portion. It consists of a number of pieces and these are glued to a card, with the superimposed tick marks indicating millimetres. One of the fragments is shown enlarged.

Photographer: Heino Lepp