Antidactylaria Z.F. Yu, M. Qiao & R.F. Castañeda, gen. nov.

Index Fungorum number: IF555876; Facesoffungi number: FoF 05734

Etymology: Greek, Anti- meaning against, + Latin, dactylaria, referring to the genus Dactylaria.

Sexual morph: undetermined.

Asexual morph: hyphomycetous. Colonies effuse, white to rosy buff. Myce- lium superficial and immersed. Conidiophores macronematous, erect, unbranched, septate, hyaline, sometimes reduced to conidiogenous. Conidiogenous cells polyblastic, sympodial elongated, integrated, terminal determi- nate or indeterminate, hyaline. Conidial secession rhexolytic. Conidia solitary, acrogenous, narrow obclavate, cylindrical to fusiform, navicular, attenuate towards the apex, rostrate, unicellular or septate, hyaline or sub- hyaline, smooth-walled, with a minute basal frill.

Notes: The genus Dactylaria Sacc., typified with D. purpurella (Sacc.) Sacc., is characterized by unbranched, septate, hyaline or pigmented conidiophores and denticulate, integrated, mostly terminal, sympodially ex- tending conidiogenous cells and cylindrical, fusiform, filiform, ellipsoid, clavate, obclavate, unicellular or sep- tate, hyaline or pale pigmented conidia that are liberated after schizolytic secession [60-62]. The rhexolytic conidial secession in Antidactylaria separates it from Dactylaria morphologically as conidiogenous event and an important criterion for generic delimitation, discussed by Paulus et al. [61] and supported by the molecular phylogeny analysis obtained from Antidactylaria minifimbriata.

Type species: Antidactylaria minifimbriata Z.F. Yu, M. Qiao & R.F. Castañeda.