Cladonia mongkolsukii Parnmen & Ahti  

Mycobank 517755

Primary thallus persistent, irregularly lobed to deeply laciniate, 0.77–1.85 mm long, 0.22–0.85 mm wide, lower surface white, ecorticate, upper surface greenish, corticate; podetia 10–65 mm tall, 0.35–3.00 mm thick, clavate, whitish grey to brownish, unbranched or slightly branched at apex, blunt, at first ascyphose but soon becoming tipped with very narrow scyphi, 1–3 mm in diam., 6–7 tiers of scyphi produced per podetium; podetial wall 87.5–150 µm: medulla 12.5–50 µm, stereome 70–100 µm; surface rough, ecorticate to discontinuously corticate with microsquamules, especially densely squamulate near tips; podetial squamules 0.58–1.98 mm long, 0.16–0.43 mm wide, upper part green, corticate, lower part whitish, ecorticate; apothecia pale brown to orange or brownish, terminal on podetia; ascospores simple, hyaline, oblong to ellipsoid, (6.4–)9–9.5–10(–14) x (1.6–)2.7–2.9–3.1(–4.2) µm, 8/ ascus; conidiomata not seen. Secondary chemistry: podetia: P+ orange turning red, K± yellow, C–, KC–, containing fumarprotocetraric acid (major) and homosekikaic acid (major).