Clypeopyrenis porinoides Komposch, J. E. Hern. & Rosabal  

Mycobank MB 517756

Thallus corticolous, up to 10 cm diam., continuous; surface smooth to uneven, light greyish green. Thallus in section with thick, paraplectenchymatous upper cortex and thick algal layer. Perithecia solitary or 2–3 aggregate, erumpent to prominent, wart-shaped, 0.4–0.6 mm diam., 0.3–0.4 mm high, completely covered by thalline layer up to the ostiole, light greyish green to yellowish green, ostiolar area with red-brown to dark brown spot. Involucrellum and excipulum not well separated, basally up to 25 µm thick and laterally and apically 50–100 µm thick, fully carbonized; covered by corticate algiferous thallus up to the ostiole; hypothecium prosoplectenchymatous, 5–10 µm high, colourless; hamathecium colourless, clear, I–, KI–. Paraphyses unbranched, glabrous; periphyses not observed. Asci clavate, 40–50 x 6–8 µm. Ascospores 8 per ascus, irregularly arranged, ellipsoid with rounded ends, 1-septate, with slight constriction at septum, 5–6 x 2.5–3 µm, 2 times as long as wide, with slightly thickened septum and angular lumina, dark brown, I–. Secondary chemistry: no substances detected by TLC.