Pleurophragmium miniumbonatum (R. F. Castañeda, Iturr. & Guarro) R. F. Castañeda

Réblová, Martina, Nekvindová, Jana, Bauchová, Lucie & Hernández-Restrepo, Margarita, 2025, Pleurophragmium parvisporum (Ascomycota): One name, seven stories – a case highlighting the need for verification of strains from public culture collections, IMA Fungus 16, pp. e 173033-e 173033 : e173033-

Pleurophragmium miniumbonatum (R. F. Castañeda, Iturr. & Guarro) R. F. Castañeda , Mycotaxon 101: 96. 2007.

Basionym.

Cordana miniumbonata R. F. Castañeda, Iturr. & Guarro , Mycotaxon 73: 5. 1999.

Typus.

VENEZUELA • Estado de Aragua, Parque Nacional “Henry Pittier”, Estación Rancho Grande, Camino de Interpretación de la Naturaleza “Andy Fields” , in undisturbed rain forest; on fallen decaying leaves on an unidentified plant; 25 Nov 1997; R. F. Castañeda & T. Iturriaga ( holotype MUCL 40700 ) .

Notes.

Heredia et al. (2007) transferred C. miniumbonata to Pleurophragmium based on its superficial resemblance to P. aquaticum (in the same study) and the presence of conidiophores with a terminal denticulate fertile region, a feature more consistent with Pleurophragmium than with Cordana ( Preuss 1851; Hernández-Restrepo et al. 2014). The conidia of P. miniumbonatum are dark brown, except for the hyaline basal cell, and exhibit an umbonate apex with variable shapes ranging from obovoid and pyriform to broadly clavate. However, such dark brown conidia are atypical of Pleurophragmium under its current circumscription.