Trichosphaeria Fuckel, Jb. nassau. Ver. Naturk. 23-24: 144 (1870) [1869-70]
Diaporthomycetidae family incertae sedis, Trichosphaeriaceae, Trichosphaeria
Saprobic or pathogenic on plant materials. Sexual morph: Ascomata dark brown, perithecial, small, globose to subglobose with a flattened base, superficial, amphigenous, setose, combined into groups, scattered. Setae many, pale brown, septate, smooth, up to 600 μm length and 7 μm width, giving a star-like look to the ascoma. Peridium containing a single layer of thick-walled, polygonal to angular, dark brown, cells of textura angularis. Hamathecium containing simple, hyaline, guttulate, septate, thin-walled, paraphyses. Asci 4–8-spored, unitunicate, cylindrical to clavate, with a nonamyloid apical ring. Ascospores hyaline, indirectly uniseriate to biseriate, ellipsoidal, narrowly elliptical to fusiform, aseptate, smooth, sometimes slightly curved, lacking germ pores. Asexual morph: Undetermined (adapted from Maharachchikumbura et al. 2016).
Type species: Trichosphaeria pilosa (Pers.) Fuckel, Jb. nassau. Ver. Naturk. 23-24: 145 (1870) [1869-70]
Notes: Trichosphaeria was established by Fuckel (1870) with the type species T. pilosa collected from rotten wood from Germany. Trichosphaeria species are characterized by globose to subglobose ascomata with setae, unitunicate, 4–8-spored asci with a J-, apical ring, and hyaline, aseptate, ellipsoidal ascospores. Since most Trichosphaeria species were introduced before 1940, molecular data are lacking in this genus. The genus needs recollection and study.
Species illustrated in this entry:
Trichosphaeria pilosa (Pers.) Fuckel
Fuckel L. 1870 – Symbolae mycologicae. Beiträge zur Kenntniss der Rheinischen Pilze. Jahrbücher des Nassauischen Vereins für Naturkunde 23–24, 1–459
Maharachchikumbura SSN, Hyde KD, Jones EBG, McKenzie EHC et al. 2016 – Families of Sordariomycetes. Fungal Diversity 79, 1–317