The current paper represents the fourth contribution in the Genera of Fungi series, linking type species
of fungal genera to their morphology and DNA sequence data. The present paper focuses on two genera of
microfungi, Camarosporium and Dothiora, which are respectively epi- and neotypified. The genus Camarosporium
is typified by C. quaternatum, which has a karstenula-like sexual morph, and phoma-like synasexual morph.
Furthermore, Camarosporomyces, Foliophoma and Hazslinszkyomyces are introduced as new camarosporiumlike
genera, while Querciphoma is introduced as a new phoma-like genus. Libertasomycetaceae is introduced
as a new family to accommodate Libertasomyces and Neoplatysporoides. Dothiora, which is typified by
D. pyrenophora, is shown to produce dothichiza- and hormonema-like synasexual morphs in culture, and D.
cactacearum is introduced as a new species. In addition to their typification, ex-type cultures have been deposited
in the Westerdijk Fungal Biodiversity Institute (CBS Culture Collection), and species-specific DNA barcodes in
GenBank. Authors interested in contributing accounts of individual genera to larger multi-authored papers in this
series should contact the associate editors listed on the List of Protected Generic Names for Fungi.