Apothecia scattered, 2-3 mm wide, sessile, discoid, with a short base, receptacle dark brown, bottom entangled with brown, thick-walled hyphae, 3-5 μm wide, disc greenish brown, dotted with protruding asci. Excipulum of a textura globulosa, cells 8-20 μm wide. Asci clavate, 245-250 × 15-21 μm, walls not turning to blue in Melzer's reagent. Ascospores broadly ellipsoid, 19-23 × 13-15 μm, including warts, 16-18 × 10-11 μm without ornamentation, purplish brown, warty; warts irregularly shaped, 1-2 × 1-3 μm. Paraphyses filiform, septate, tips 2-3 μm, branched near the base, rarely enlarged at the tips up to 5 μm, embedded in greenish brown mucus.
Specimens：
Taiwan, Nantou: Meifeng, on burnt charcoal, 14 June 1995, Y.Z. Wang, WAN 160 (TNM F3423); Nantou: Meifeng, on burnt log, 3 Dec. 1998, Y.Z. Wang, WAN 646 (TNM F9956).
Habitat：
Lignicolous. On charcoal, burnt vegetable debris, and burnt soil.
Distribution：
Cosmopolitan.
References：
Brummelen, J. 1967; Paulsen, MD and Dissing, H. 1977.
Provided：
Y. Z. Wang
Note：
This species is recognized by its habitat and the warty ascospores. Ascobolus archeri Berk. also grows on charcoal but with smaller ascospores (17.5-22 × 9-11.5 μm, Brummelen 1967). The polar thickening on the ascospores is not prominent in Taiwanese collections as described by Brummelen (1967), and Paulsen & Dissing (1979).
Phylum：Ascomycota >> Class： Ascomycetes >> Order： Pezizales 
BCRC Number：