Dothideomycetes » Macrovalsariaceae » Macrovalsaria

Macrovalsaria leonensis

Macrovalsaria leonensis (Deighton) Petr., Sydowia 15(1-6): 298 (1962) [1961]                                         Fig. 21

Valsaria leonensis Deighton, Sydowia 6(5-6): 321 (1952)

Index Fungorum number: IF 333867; Facesoffungi number: FoF 06251

Current name: Macrovalsaria megalospora (Mont.) Sivan. Trans. Br. Mycol. Soc. 65: 400 (1975)

Saprobic on dead branches of Caesalpinia sappan L. Sexual morph: Ascostromata 635–1010 µm high × 882–1015 µm diam., dark brown to black, immersed to erumpent, solitary to a few in a group, carbonaceous, oblate, spheroid to subsphaerical, with a central ostiole. Peridium comprising brown and small-celled textura angularis. Asci 192198 × 3141 µm ( = 195.9 × 36.1, n = 20), 8-spored, bitunicate, fissitunicate, cylindro-clavate, with a short fine pedicel, apically rounded with a small ocular chamber. Paraphyses 36 µm wide, unbranched, tapering upwards, apically free. Ascospores 3840 µm × 1418 µm ( = 38.8 × 16.6 µm, n = 20), uniseriate to irregularly uniseriate, 1-septate, brown, elliptical-fusoid, slightly constricted at septum, with skull cap-like germ apparatus at the lower end, transverse striation near the center of lower cell with longitudinal striations from transverse striation to the end cell, surface smooth, granular to verrucose. Asexual morph: Undetermined.