Helminthosphaeria Fuckel, Jb. nassau. Ver. Naturk. 23-24: 166 (1870)

Index Fungorum number: IF 2263; MycoBank number: MB 2263; Facesoffungi number: FoF 01143; 18 morphological species (Species Fungorum 2020), 9 species with sequence data.

Type species – Helminthosphaeria clavariarum (Desm.) Fuckel

Notes – Helminthosphaeria was included in Melanosporaceae, Sordariales based on its 1- septate ascospores with apical pores (Parguey-Leduc 1960). Lundqvist (1972) excluded Helminthosphaeria from Melanosporaceae due to its distinct filamentous pseudoparaphyses and asci lacking sheaths. Barr (1990b) reevaluated Sordariaceae and included Helminthosphaeria. Eriksson & Hawksworth (1993) placed Helminthosphaeria in Sordariales. Samuels et al. (1997) monographed the genus, including the asexual morph Diplococcium, and introduced Helminthosphaeriaceae (Goh & Hyde 1998, Réblová 1999a, Hernández-Restrepo et al. 2017).

Figure 118 – Helminthosphaeria pilifera (diplococcium-like, redrawn from Réblová 1999a). Conidiophore with conidia of Diplococcium asexual morph. Scale bar = 20 µm.

Species

  • Helminthosphaeria clavariarum