AntidactylariaZ.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 genusDactylaria.

Sexual morph: undetermined.

Asexual morph: hyphomycetous.Colonieseffuse, white to rosy buff.Myce- liumsuperficial and immersed.Conidiophoresmacronematous, erect, unbranched, septate, hyaline, sometimes reduced to conidiogenous.Conidiogenous cellspolyblastic, sympodial elongated, integrated, terminal determi- nate or indeterminate, hyaline. Conidial secession rhexolytic.Conidiasolitary, 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 genusDactylariaSacc., typified withD. 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 inAntidactylariaseparates it fromDactylariamorphologically as conidiogenous event and an important criterion for generic delimitation, discussed by Paulus et al. [61] and supported by the molecular phylogeny analysis obtained fromAntidactylaria minifimbriata.

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