Pleosporales » Coniothyriaceae

Ochrocladosporium

Ochrocladosporium Crous & U. Braun, Mycol. 58: 46 (2007)

Index Fungorum number: IF 504437; Facesoffungi number: FoF 08175, 3 morphological species (Species Fungorum 2021), 3 species with molecular data.

  Saprobic on wood pulp. Sexual morph: Unknown. Asexual morph: Mycelium consisting of branched, septate hyphae, sub hyaline to pale brown, smooth, giving rise to two types of conidiophores. Macronematous conidiophores solitary, erect, arising from superficial hyphae, composed of a sub cylindrical stipe, without a swollen or lobed base or rhizoids, with or without a T-shaped foot cell, pale to dark brown; apical conidiogenous apparatus with or without additional branches, branched part, if present, with short branchlets composed of conidiogenous cells and ramoconidia, continuous to septate, wall thin or slightly thickened, pale brown. Conidiogenous cells integrated, terminal or intercalary, sub cylindrical to doliiform, pale brown, thin-walled, smooth; unilocal or multilocal, determinate to sympodial, loci conically truncate, subdenticulate, neither thickened, nor darkened-refractive or only slightly darkened-refractive. Micronematous conidiophores integrated in hyphae, reduced to a lateral peg-like locus or erect, frequently reduced to conidiogenous cells, pale brown, smooth, sub cylindrical. Conidia occurring in branched chains, fusiform, ellipsoid-ovoid to sub cylindrical, 0(–1)- septate. Ramoconidia present, pale brown, thin-walled, smooth to finely verruculose, ends attenuated, hila obconically truncate to almost pointed, neither thickened nor darkened-refractive (Adapted from Crous et al. 2007).

 

Type species: Ochrocladosporium elatum (Harz) Crous & U. Braun

 

Notes: Ochrocladosporium was introduced by Crous and Braun (2007) with O. elatum as type species. Ochrocladosporium is characterized by dimorphic conidiophores, conidia mostly aseptate, hila inconspicuous, neither thickened nor darkened. Ochrocladosporium can be differentiated from Cladosporium s. str. based on DNA sequence data. Phylogenetically, Ochrocladosporium is a distinct and stable lineage within Coniothyriaceae.

 

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