Neofusicladium Crous, M. Shen & Y. Zhang ter,gen. nov.

Index Fungorum number: MB831512;Facesoffungi number:FoF 12040

Etymology: Named after the genusFusicladium, to which it is morphologically similar, and neo- to new.

Myceliumconsisting of pale to medium brown, smooth, branched, septate hyphae.Conidiophoresreduced to con- idiogenous cells, or with basal supporting cell, solitary, erect, pale brown, smooth, subcylindrical to doliiform, sometimes dimorphic.Conidiogenous cellsterminal or lateral, integrated, subcylindrical or doliiform, pale to medium brown, smooth, proliferating sympodial; conidiogenous loci somewhat thick- ened and darkened, not refractive.Ramoconidiabrown, smooth, subcylindrical or fusoid-ellipsoid, aseptate or septate.Conidiamostly occurring in branched chains, pale brown, smooth, subcylindrical to fusoid-ellipsoidal, aseptate or septate, sometimes widest in middle, truncate at the ends;hilasomewhat darkened and thickened, but not refractive (adapted from Crouset al.2010, 2016, 2017).

Type species:Neofusicladium eucalypti(Crous & R.G. Shivas) Crous, M. Shen & Y. Zhang ter

Notes: – So far,Neofusicladiumcomprises three species,viz.,N.eucalypti,N.eucalypticolaandN.regnans. All threeNeo-fusicladiumspecies were isolated fromEucalyptusleaves (Crouset al.2010, 2016, 2017). The diagnostic characteristics ofNeofusicladiumincludes sympodial conidiophores with some- what thickened and darkened, non-refractive conidiogenous loci, mostly branched conidial chains, and the presence of ramoco- nidia (Crouset al.2010, 2016, 2017). Phylogenetically,Neo- fusicladiumis basal inSympoventuriaceaeand is introduced as a new genus (Fig. 1).

Fig 1. Consensus phylogram (50 % majority rule) of 691 952 trees resulting from a Bayesian analysis of the combined alignment of ITS, LSU,tef1,tub2andrpb2sequences ofVenturiales. Bayesian posterior probabilities (PP) > 0.80 are shown at the nodes and the scale bar represents the expected changes per site. Some branches were shortened to facilitate layout. The tree was rooted withMicrothyrium microscopicum(CBS 115976). Culture collection numbers, substrates and countries are indicated behind the species names. Those highlighted in bold are new taxa or new combinations proposed in this study, and type strains are marked with “T” (ex-type in black, ex-epitype in red). Relevant morphological characteristics plotted are abbreviated as follows: Sol – conidia solitary, C – conidia in chains, NS – aseptate conidia, 1S – 1-septate conidia, MS – multi- septate conidia (septa ≥ 2), St – straight or slightly curved conidia, Coil – coiled conidia, Y – Y-shaped conidia; Ramo – ramoconidia present, NR – ramoconidia not observed;

? – asexual morphology not available (either from references or from sporulation induced in this study); and morphological characters plotted in red means strains failed to sporulate in this study and plotted values are taken from the original description, observation of this study or related references. Other characteristics are explained in the legend.

Fig 1.(Continued).