Speiropsis Tubaki, J. Hattori bot. Lab. 20: 171 (1958).
Index Fungorum number: IF 9965; Facesoffungi number: FoF 06558; 8 morphological species (Species Fungorum 2022), 2 species with molecular data.
Saprobic on dead leaves. Sexual morph: Unknown. Asexual morph: Conidiophores macronematous, mononematous, simple, straight or flexuous, 4-7 septate, solitary, smooth, brown. Conidiogenous cells polyblastic, determinate, discrete, cylindrical, denticles not evident, smooth, light brown. Conidia catenate connected by narrow isthmi with 4-8 cells, forming branched chains, cylindrical to cuneiform, smooth, pale to mid-brown (adapted from Barbosa and Gusmao 2005).
Type species: Speiropsis pedatospora Tubaki
Notes: Speiropsis is characterised by erect, simple, straight, septate, mononematous or, in a few species, aggregated in fascicles or synnematous to sporodochial conidiophores with discrete, denticulate, polyblastic conidiogenous cells and catenate conidia in branched or unbranched chains connected by narrow isthmi. A synopsis with morphological features and geographical distribution of the described Speiropsis species is given by Barbosa and Gusmao (2005). Molecular markers available for Speiropsis are ITS, LSU and SSU.
Recent NewsRecent paper to be published
Recent SpeciesXylopezia hemisphaerica