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 Thallus: continuous, immersed in the substrate,; upper surface: whitish to gray, smooth; photobiont: absent; Perithecia: hemispherical, black, superficial on the thallus, 0.2-0.3 mm diam.; ascomatal wall: black, absent below the hamathecium; hamathecium: branched pseudoparaphyses, not anastomosing, dehiscent or becoming unclear; filaments: c. 3 µm wide, not inspersed with oil droplets; asci: pyriform, c. 60-70 x 18-22 µm, with 8, irregularly arranged ascospores; ascospores: hyaline but overmature ones brownish, clavate, 3-septate (starting with a supramedian euseptum), 25-30 x 6-9 µm; walls: roughly ornamented with warts, without a gelatinous sheath; Spot tests: all negative, UV negative; Secondary metabolites: none detected.; Substrate and ecology: on bark of various woody plants, especially conifers like Abies and Picea; World distribution: northern temperate or possibly nearly cosmopolitan; Sonoran distribution: recorded in eastern Arizona and Baja California Sur. 

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© Lichen Unlimited: Arizona State University, Tempe.

Source: Lichen Flora of the Greater Sonoran Desert Region

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