Six species of Punctelia with black lower surface lacking vegetative propagules are taxonomically revised. Lectotypes are designated for P. borrerina, P. microsticta and Parmelia borreri var. allophyla. Punctelia involuta Canêz & Marcelli is described as new. Punctelia borreri var. allophyla Kremp. is regarded as a synonym of P. borrerina (Nyl.) Krog, instead of P. microsticta (Müll. Arg.) Krog, as previously thought. Punctelia jujensis Adler is recorded for the first time for Brazil. All the species of this group occur in Brazil.
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Vol. 113 • No. 4