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 Add this item to the list   831821 Original description
   
Remarks (public):The new species is only known the Azores 
Description type:Original description 
Description:Diagnosis. Species characterized by inconspicuous, pale brownish to moderately brownish, isidiate thallus, branched to coralloid isidia, emarginate, adnate to slightly convex apothecia measuring 0.1–0.5 mm in diam., which are pale cream to pale brown, or aeruginose with pigment (Sedifolia-grey, K+ violet, C+ violet) present in hypothecium, (0–)1-septate ascospores measuring 9–14 × 4.5–5.5 µm and the production of micareic acid. Description. Thallus indeterminate, inconspicuous, thin, endosubstratal to episubstratal in non-isidiate parts as a thin film over the substrate or minutely granular, pale to moderately brown, isidiate; prothallus not visible; granules vertically proliferating to form isidia; isidia branched to coralloid, crowded or separated, up to 250 μm tall and 25 μm wide, with a distinct and complete hyphal layer; apothecia abundant, adnate to slightly convex, emarginate, rounded to slightly irregular, pale cream to pale brown or aeruginose, often different colors in a single apothecium, 0.1–0.5 mm in diam.; excipulum sometimes paler, instinct; hymenium 40–50 µm high, hyaline; hypothecium hyaline to pale aeruginose brownish (Sedifolia-grey), K+ violet, C+ violet; paraphyses, sparse, branched, 1.0–1.2(–1.5) µm wide, tips not widened and not pigmented; asci cylindrical to clavate, 35–40 × 11–14 µm, 8–spored; ascospores ellipsoidal to ovoid, (0‒)1-septate, 9–14 × 4.5–5.5 µm; pycnidia not observed; crystalline granules (studied in polarized light) visible in hypothecium and in thallus, soluble in K. Photobiont micareoid, cells thin walled, 6–9 µm diam., clustered in compact groups. Chemistry. Micareic acid detected by TLC. Sedifolia-grey in apothecia (hypothecium), sometimes its presence is indistinct. 
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