Its fungicolous habitat, however, distinguishes it from Byssosphaeria. Appendispora K.D. Hyde, Sydowia 46: 29 (1994a). (?Didymellaceae) Generic description Habitat terrestrial, saprobic. Ascomata small, clustered, immersed, subglobose or irregularly pyriform. Peridium thin. Hamathecium of dense, long trabeculate pseudoparaphyses. Asci 8-spored, bitunicate, fissitunicate,
cylindrical, apical rounded with ocular chamber and faint ring, with short pedicels. Ascospores uniseriate to partially overlapping, fusoid, brown, 1-septate, slightly constricted at the septum. Anamorphs reported for genus: none. Literature: Hyde 1994a. Type species Appendispora frondicola K.D. Hyde, Sydowia 46: 30 (1994a). (Fig. 5)
Fig. 5 Appendispora frondicola (from BRIP 21354, holotype). a Immersed ascomata on host surface. b Valsoid Tariquidar in vitro configuration of the ascomata. c Cylindrical ascus. d Squash showing asci and numerous pseudoparaphyses. e Thin strands of anastomosing pseudoparaphyses. f, g Ascospores with one or two appendages. Scale bars: a = 0.5 mm, b = 100 μm, c–g = 10 μm Ascomata 120–280 μm high × 180–280 μm diam., clustered, immersed with minute ostioles visible through cracks or blackened dots on the host surface, subglobose or irregularly pyriform (Fig. 5a CX-6258 molecular weight and b). Peridium 40 μm thick, comprising two types of cells; outer cells, small heavily pigmented thick-walled cells of textura Linifanib (ABT-869) angularis, inner cells compressed, hyaline. Hamathecium of dense, very long trabeculate pseudoparaphyses, ca. 1 μm broad, embedded in mucilage, hyaline, anastomosing (Fig. 5e). Asci 130–144 × 11–13 μm, 8-spored, bitunicate, fissitunicate,
cylindrical, with an ocular chamber and faint ring, with short pedicels (Fig. 5c and d). Ascospores 21–30 × 7–9 μm, uniseriate to partially overlapping, fusoid, brown, 1-septate, slightly constricted at the septum, with an irregular ridged ornamentation and 3–5 narrow appendages at each end (Fig. 5f and g). Anamorph: none reported. Material examined: BRUNEL, Jalan, Muara, Simpang 835, on dead rachis of Oncosperma horridum on forest floor, Nov. 1992, K.D. Hyde 1652 (BRIP 21354, holotype). Notes Morphology Appendispora was selleck kinase inhibitor described as a saprobe of palm, and is characterized by small, immersed ascomata, bitunicate, fissitunicate asci, trabeculate pseudoparaphyses, brown, 1-septate, appendaged ascospores with irregular wall striations (Hyde 1994a). Based on its trabeculate pseudoparaphyses embedded within gel matrix and its brown ascospores, Appendispora was assigned to Didymosphaeriaceae (Barr 1987b; Hyde 1994a). Phylogenetic study None. Concluding remarks The saprobic habitat and association with monocots, cylindrical asci, trabeculate pseudoparaphyses as well as its brown, 1-septate ascospores make it difficult to determine a better phylogenetic position than Didymellaceae. Ascorhombispora L. Cai & K.D.