In this paper, we present new insights into the relationships of the lichen-forming genus Absconditella. The study is based on a phylogenetic analysis of DNA sequence data of three gene loci—two nuclear (the nuclear large subunit and internal transcribed spacer of rDNA) loci, and one mitochondrial (mitochondrial small subunit) locus, and an examination of species morphology. We show that Absconditella do not form a monophyletic lineage within Stictidaceae. One of the lineages, sister to Xyloschistes, Ingvariella and Cryptodiscus contains a recently described Absconditella rubra, and a species superfcially similar to A. lignicola except it is smaller in all morphometric characteristics. Therefore, we introduce a new genus Absconditonia accommodating these two species. We confrm that the monotypic genus Geisleria belongs to Absconditella, and hence we combine Geisleria with the latter. Incorporation of public environmental ITS sequences into the analysis showed that both these genera—Absconditella and Absconditonia—may be more widespread than known only by specimen samples. Keywords: New species · Taxonomy · Overlooked taxa · Environmental sequences · Phylogeny.