neomexicana (Barr 1990a). Ohleriella subsequently
has been treated as a synonym of Ohleria, Sporormiella or Preussia (Ahmed and Cain 1972; von Arx and Müller 1975; Clements and Shear 1931). buy JIB04 Spororminula tenerifae, the generic type of Spororminula, was assigned to Ohleriella, thus Spororminula was treated as a synonym of Ohleriella (Barr 1990a). Two new species were introduced by Barr (1990a) from North America. Currently, three species are included in this genus, i.e. O. herculean (Ellis & Everh.) M.E. Barr, O. neomexicana and O. nudilignae M.E. Barr & Malloch (http://www.indexfungorum.org; http://www.mycobank.org, 01/03/2009). The generic type, O. neomexicana, is morphologically similar to the coprophilous genus Sporormiella, but is saprobic on grass stems. Phylogenetic study None. Concluding remarks Although we maintain Ohleriella as a separate genus here, its saprobic habitat on grasses and similarity to the coprophilous Sporormiella may indicate a close evolutionary relationship, with the grass saprobic possibly being
an early relative of the coprophilous Sporormiella. Alternatively, the species/genera may simply occupy different ecological niches (i.e. dead grass vs dead grass in dung). Molecular studies are needed to resolve this issue. Ophiobolus Reiss, Hedwigia 1:27 (1854). (Phaeosphaeriaceae) Generic description Habitat terrestrial, saprobic or hemibiotrophic. Ascomata medium-sized, solitary, scattered, or in groups, globose or pyriform, coriaceous, black, papillate, ostiolate, periphysate. Peridium thin, thicker near the apex, thinner at the base. learn more Tau-protein kinase Hamathecium of long cellular pseudoparaphyses, septate, anastomosing or branching not observed. Asci 8-spored, selleck products bitunicate, fissitunicate dehiscence not observed, cylindrical, with a short, furcate pedicel. Ascospores filamentous, narrower toward the lower end, pale brown, multi-septate, separating
into two partspores from the middle septum, from the breaking point, the second cell of each partspore enlarged. Anamorphs reported for genus: Coniothyrium-like, Rhabdospora, Phoma-like and Scolecosporiella (Hyde et al. 2011; Shoemaker 1976; Sivanesan 1984). Literature: Holm 1948, 1957; Müller 1952; Reiss 1854; Shoemaker 1976; Sivanesan 1984. Type species Ophiobolus disseminans Reiss, Hedwigia 1:27 (1854) (Fig. 70). Fig. 70 Ophiobolus disseminans (from BPI-629021, type). a Immersed ascomata scattered on the host surface. Note the erumpent papilla. b Section of an ascoma. c. Section of a partial peridium. Note the thick-walled outer layer and thin-walled inner layer (orange colour due to DIC). d Ascus with a short furcate pedicel. e Squash mount showing asci in pseudoparaphyses. Scale bars: a = 0.5 mm, b = 100 μm, c = 50 μm, d, e = 20 μm Ascomata 220–380 μm high × 290–430 μm diam., solitary, scattered, or in groups often arranged in a row, immersed with a protruding papilla, globose, pyriform, coriaceous, black, periphysate.