Fulvia
Fulvia Cif., Atti Ist. bot. Univ. Lab. crittog. Pavia, sér. 5 10(2): 246 (1954).
Index Fungorum number: IF 8276; Facesoffungi number: FoF 08502, 1 morphological species (Species Fungorum 2022), 1 species with molecular data.
Saprobic or pathogenic on host. Sexual morph: Unknown. Asexual morph: Colonies effuse, velvety, buff to brown or purplish. Stroma present, pale, substomatal. Conidiophores macronematous, mononematous, caespitose, emerging through stomata, unbranched or occasionally branched, straight or flexuous, narrow at the base, thickening towards the apex, with unilateral nodose swellings which may proliferate as short lateral branchlets, very pale to mid pale brown or olivaceous brown, smooth. Conidiogenous cells mono or polyblastic, integrated, terminal becoming intercalary, sympodial, clavate or cylindrical, cicatrized. Conidia catenate, chains frequently branched, acropleurogenous, simple, cylindrical with rounded ends or ellipsoidal, very pale to mid pale brown or olivaceous brown, smooth, 0–3-septate, hilum sometimes slightly protuberant (adapted from Ellis 1971; Videira et al. 2017).
Type species: Fulvia fulva (Cooke) Cif.
Notes: Fulvia is characterised by macronematous, mononematous conidiophores, with unilateral nodose swellings, mono- or polyblastic conidiogenous cells, and catenate, acropleurogenous, very pale to mid pale brown or olivaceous brown conidia. Videira et al. (2017) epitypified Fulvia which was previously considered as a synonym of Passalora. Fulvia can be distinguished based on LSU and ITS gene sequences and the more ideal DNA marker is the rpb2. Fulvia is phylogenetically closely related to Stromatoseptoria but can be differentiated in that the latter has a central cushion or stroma that gives rise to the conidiophores and olivaceous brown conidia that become verruculose with age. Fulvia is a distinct and well-supported genus in Mycosphaerellaceae. Molecular markers available for Fulvia are LSU and ITS.
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