Equiseticola Abdelsalam, Tibpromma, Wanas. & K.D. Hyde, in Abd-Elsalam et al., Phytotaxa 284(3): 173 (2016).
Saprobic on decaying herbaceous branches. Sexual morph: Ascomata immersed to semi-immersed, uniloculate, ovoid, ostiole central, with papilla. Peridium composed of several layers, of brown to dark brown cells, arranged in a textura angularis. Hamathecium 1–2 μm wide, filamentous, septate, pseudoparaphyses. Asci 8-spored, bitunicate, cylindrical, with long acute or knob-like pedicel, apically rounded, with ocular chamber. Ascospores fusiform, initially hyaline becoming yellowish pale brown at maturity, 4–5-septate with distinct septa, guttulate, not constricted at the septa, without a mucilaginous sheath. Asexual morph: Undetermined (Adapted from Abdelsalam et al., 2016).
Type species: Equiseticola fusispora Abdelsalam, Tibpromma, Wanas. & K.D. Hyde
Notes: Equiseticola was introduced by Abdelsalam et al. (2016) with E. fusispora as type species. Equiseticola is morphologically similar to Nodulosphaeria in ascomatal characters, peridium structures, cylindrical to cylindric-clavate asci and fusiform ascospores but cluster in a separate clade based on phylogenetic analysis (Abdelsalam et al., 2016). Equiseticola is morphologically and phylogenetically a distinct and well-defined genus in Phaeosphaeriaceae. Molecular markers available for Equiseticola are LSU, SSU, ITS and TEF-1.