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Phylogenetic tree inferred from a RAxML search of a concatenated alignment of ITS, LSU, TEF1, RPB1 and RPB2 showing the relationship among Gibellula and related genera. Bootstrap proportions/ Bayesian posterior probabilities ≥ 50% are provided above corresponding nodes; nodes with 100% support are shown as thick lines. The ex-type strains are marked with a superscript T (T) and the isolates reported in this study are bold.


Gibellula cebrennini a fungus on spider (BBH 35749) b perithecia c a part of synnema showing conidiophores d perithecium e asci with apical apparatus f ascospores g conidiophore h conidial head i conidia j granulomanus-like asexual morph k colonies obverse and reverse on PDA at 25 °C after 28 days. Scale bars: 1 mm (d); 50 μm (e–f, g); 20 μm (h, j); 10 μm (i).


Gibellula fusiformispora a fungus on a spider (BBH 38838) b fungus on a spider (BBH 32918) c synnemata (BBH 32918) d, e perithecia (BBH 38838) f ascus (BBH 38838) g ascospores (BBH 38838) h conidia (BBH 32918) i conidiophores showing conidial heads (BBH 32918) j conidial head bearing conidia (BCC 32918) k colonies obverse and reverse on PDA at 25 °C after 20 days. Scale bars: 250 μm (e); 100 μm (i); 50 μm (g); 20 μm (f, h, j).


Gibellula pigmentosinum a fungus on spider (BBH 28509); b perithecia; c an ascus with an apical apparatus; d ascospore; e part-spores; f conidiophores; g conidial heads; h conidia; i granulomanus-like asexual morph; j colonies obverse and reverse on PDA at 25 °C after 28 days. Scale bars: 1 mm (b); 500 μm (d); 100 μm (f); 50 μm (g); 20 μm (c, i); 10 μm (e, h).


Gibellula scorpioides a fungus on a spider (BBH 29669) b fungus on a spider (BBH 31439) c perithecia (BBH 31439) d conidiophores arising on synnema (BBH 29669) e penicillate conidiophore (BBH 29669) f conidia (BBH 29669) g asci (BBH 31439) h ascus with apical apparatus (BBH 31439) i ascospores (BBH 31439) j penicillate conidiophore produced on PDA k conidia on PDA l colonies obverse and reverse on PDA at 25 °C after 4 months. Scale bars: 500 μm (c); 50 μm (d, g); 20 μm (e, h–j); 10 μm (f, k).