Fungalpedia – Note 1702, Ascodichaenaceae

Ascodichaenaceae. D. Hawksw. & Sherwood.

Index Fungorum, Facesoffungi, MycoBank, GenBank

Classification: Rhytismatales, Leotiomycetidae, Leotiomycetes, Pezizomycotina, Ascomycota, Fungi

Taxa are plant pathogenic. Ascomata are apothecial and characterized by round to elongate hysterioid apothecia opening by a stellate fissure and carbonaceous. The excipulum is reduced or composed of cells of textura angularis to globulosa and it is not differentiated into ectal excipulum and to medullary excipulum or it is unclear. Paraphyses are filiform, simple and slightly apically swollen. Asci are 4–8-spored, broad clavate-cylindric, non-amyloid and opening by a fissure. Ascospores are ellipsoid to oblong, 0–1-septate, hyaline and granulate (Butin 1977, Butin & Parameswaran 1980). Asexual morphs are pycnidial, hysteriform. Conidiophores are arising from the innermost layer of pycnidial wall and conidiogenesis is phialidic, microconidia simple or septate, spherical to ovate and hyaline. Conidia are ovate to cylindrical and hyaline (Butin 1977, Butin & Parameswaran 1980).

Type genus: Ascodichaena Butin, Trans. Br. mycol. Soc. 69(2): 249 (1977)