Brazilian Lichens Vol. IV

The book illustrates in detail many tropical lichens recently collected in Bahia state in Brazil. This includes isotypes of most species that were described from this state in the present century.
New species:

Phaeographis vulcanica Aptroot, Lücking, Schumm & M. Cáceres, sp. nov. Ocellularia fuscosubmuriformis Aptroot, L. A. Santos, Schumm & M. Cáceres, sp. nov.