Pseudotaeniolina
Pseudotaeniolina J.L. Crane & Schokn., Mycologia 78(1): 88 (1986)
Index Fungorum number: IF 11176; Facesoffungi number: FoF 07030; 2 morphological species (Species Fungorum 2022), 1 species with molecular data.
Saprobic on rotting stems. Sexual morph: Unknown. Asexual morph: Colonies effuse, black, forming clusters of sclerotic hyphae. Mycelium subepidermal to mostly superficial, composed of branched, septate, sub hyaline to brown hyphae. Conidiophores semi-macronematous or macronematous, mononematous, simple or irregularly branched, brown. septate, variable in length. Conidiogenous cells integrated, terminal or intercalary, determinate, fragmenting into arthroconidia. Conidia catenate, globose, ellipsoidal, ovoid, brown to dark brown, minutely warted (adapted from Crane and Schoknecht 1986).
Type species: Pseudotaeniolina convolvuli (Esfand.) J.L. Crane & Schokn.
Notes: Pseudotaeniolina resembles Phaeotheca in forming clusters of sclerotic hyphae but lacks mother cells which produce endoconidia. Pseudotaeniolina also resembles Bahusakala in forming irregularly branched micronematous or semi macronematous conidiophores which form arthroconidia by schizolytic conversion but lacks the sclerotic hyphae characteristic of Pseudotaeniolina. Pseudotaeniolina is unique in that the sclerotic hyphae form macronematous conidiophores which are converted into chains of arthroconidia that lack connectives or separating cells and are released by schizolysis. Egidi et al. (2014) accepted Pseudotaeniolina in Teratosphaeriaceae. Molecular markers available for Pseudotaeniolina are ITS, LSU, SSU, BTUB and RPB2.
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