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Australian Biological Resources Study

Checklist of the Lichens of Australia and its Island Territories
Introduction | A–D | E–O | P–R | S–Z | Oceanic Islands | References
Lecanora arthothelinella Lumbsch
  J. Hattori Bot. Lab. 77: 71 (1994). T: Grassy Head Reserve, 5 km N of Stuarts Point, N.S.W., 24 Jan. 1988, J.A.Elix 21837; holo: CANB).  
  Thallus dispersed-verrucose to verruculose, yellowish white to yellowish grey or whitish grey, epruinose. Soredia absent. Prothallus not visible. Apothecia sessile, 0.3–1.0 mm diam.; disc orange-brown to wax-coloured, epruinose; margin concolorous with the thallus, thick, ±verrucose to verruculose. Cortex hyaline, ±gelatinous, 25–35 µm thick laterally and 30–40 µm thick basally. Amphithecium with large crystals insoluble in KOH (pulicaris-type). Parathecium hyaline, with numerous small crystals insoluble in KOH, 10–15 µm thick. Epihymenium yellowish brown, c. 10–15 µm thick, with crystals and pigmentation soluble in KOH (chlarotera-type). Hymenium hyaline, inspersed with small crystals. Hypothecium and subhymenium hyaline. Paraphyses sparingly branched, not thickened apically. Ascospores ellipsoidal, 11.0–15.5 × 6.5–9.5 µm. CHEMISTRY: Thallus and apothecial margin K+ yellow, C+ pale orange, Pd+ yellow to yellowish orange; containing atranorin (major), arthothelin (major), chloroatranorin (minor), 2,4-dichloronorlichexanthone (minor), 4,5-dichloronorlichexanthone (minor), isoarthothelin (minor) and thiophanic acid (minor).
  A corticolous species in mangroves and at rainforest margins in eastern Qld and N.S.W.; phorophytes include Leptospermum and Rhizophora. Also in Papua New Guinea and Central and South America.  
  Lumbsch & Elix (2004)  

Checklist Index
Introduction | A–D | E–O | P–R | S–Z | Oceanic Islands | References

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