Penicillaginaceae Houbraken, Frisvad & Samson, fam. nov.

MycoBank number: MB 832568; Index Fungorum number: IF 832568; Facesoffungi number: FoF;

Etymology: This family is named after the sole genus in this family, Penicillago.

Type: Penicillago Guevara-Suarez, Gené & Dania García

Diagnosis: This family is phylogenetically distinct and sister to the families Aspergillaceae, Elaphomycetaceae, Thermoascaceae and Trichocomaceae in the order Eurotiales (Fig. 1). Conidiophores are penicillium-like and the phialides have a long, narrow neck.

Notes: The newly introduced family Penicillaginaceae includes one genus, Penicillago. This genus was thought to belong to the Aspergillaceae, and was named Penicillago (referring to the close phylogenetic relationship with Penicillium) (Guevara-Suarez et al. 2020). However, this genus forms a unique lineage in the Eurotiales and is rather distantly related to Penicillium in the Aspergillaceae (Fig. 1).

Fig. 1. Combined phylogeny using nine loci (RPB1, RPB2, Cct8, Tsr1, CaM, BenA, SSU, LSU, ITS). Clades in the phylogram are collapsed showing the relationship between genera and families in the Eurotiales. The phylogram is based on 263 species belonging to the order Eurotiales and 16 species from the order Onygenales (used an outgroup). The species used in the analysis can be found in Supplementary Fig. S1 and Supplementary Table S1.