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 Add this item to the list  811164 Original description
   
Remarks (public):Annulohypoxylon spougei is a cryptic species of A. nitens confirmed by four different genes of alpha-actin, beta-tubulin, elongation factor 1-alpha and ITS. 
Description type:Original description 
Description:Stromata glomerate to hemispherical, effused-pulvinate, with perithecial mounds 1/4 to 2/3 exposed and not covered by the outermost stromatal layer, 0.3–6 cm long × 0.3–3 cm broad and 1–1.6 mm thick; surface dark brown vinaceous, becoming black with reddish brown hues, finally black and shiny; black granules immediately below the surface, KOH pigments green olivaceous. Perithecia spherical, 0.5–0.7 mm diam. Ostioles conical papillate, surrounded by a flattened bovei-type disc, 0.2 – 0.5 mm diam. Asci 62–114 × 4 – 4.5 μm, the spore bearing parts 64–73 μm long with stipes 20–32(–46) μm long, with apical ring bluing in Melzer’s iodine reagent, discoid 0.7 μm high × 1.5–2 μm broad. Ascospores pale brown, unicellular, ellipsoid-inequilateral with narrowly rounded ends, 6–10.5 × 3–4.5(–5.5) μm with straight germ slit along the full length of the spore; perispore dehiscent in 10 % KOH, epispore smooth.
Culture characteristics — Colonies on potato dextrose agar (PDA) covering Petri dish in 2 wk, at first white, becoming ha- zel to dull green, azonate, with diffuse margins, with scattered black patches; reverse dull green to dark brown. Conidiogenous structure nodulisporium-like, brown. Conidia hyaline, smooth, ellipsoid, 3.5–4.5 × 2–3 μm.
 
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