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Athallia cerinelloides
Nomenclature
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Family: TeloschistaceaeGenus: Athallia
SUMMARY
Thallus absent or inconspicuous, consisting of small, scattered or contiguous areoles or granules, up to ca 1·5 cm wide and 100 µm thick; areoles 50-200 µm diam., weakly convex or as granules, greyish to greyish yellow. Thallus margin indistinct, prothallus absent.
Anamorph: not known.
Teleomorph: ascomata apothecia, normally present and crowded in small groups, usually not contiguous, sessile or slightly immersed in 100-400 (-700) µm diam.. Disc ± flat or sometimes somewhat convex, yellow to orange-yellow. Proper margin 20–40 (−50) μm thick, ± level with the disc, concolorous with or brighter yellow than the disc, consisting of radiating, thick-walled hyphae with long and narrow short ellipsoidal cells, 4–12 × 1–4 μm. Thalline margin often inconspicuous and suppressed, to 35 μm thick, grey-yellow to yellow. Epithecium orange, granular. Hymenium 55–70 μm thick, hyaline. Hypothecium 10–45 μm thick, hyaline. Interascal tissue of paraphyses, simple to branched above, 2–2·5 μm diam. with the upper cells slightly wider (to 4–6 μm diam.), sometimes oil-inspersed. Asci 43–54 × 11–15 μm, cylindrical, 8-spored. Ascospores (8·5–) 10–12·5 (–15) × (5–) 6–8 (–9) μm, broadly ellipsoidal, sometimes slightly curved, polarilocular, septum (2·5–) 3.5–5 (–6) μm wide, hyaline, smooth, without an epispore, gelatinous sheath or appendages.
Chemistry: thallus K–, apothecia K+ purple.