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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 elixii Lumbsch
  in H.T.Lumbsch & G.B.Feige, Mycotaxon 52: 435 (1994). T: Wolumba Peak, 16 km WNW of Merimbula, N.S.W, 16 June 1991, H.T.Lumbsch 8618 a & H.Streimann; holo: CANB.  
  Thallus thin, plane to slightly bullate, continuous to dispersed-verrucose, yellowish white to yellowish grey or whitish grey, epruinose. Soredia absent. Prothallus not visible. Apothecia sessile, 0.3–0.9 mm diam.; disc grey-brown to bluish grey, bluish- to bluish grey-pruinose; margin concolorous with the thallus, thin, entire, ±verrucose to crenulate. Cortex basally distinct, hyaline, ±gelatinous, inspersed with small crystals, 15–20 µm thick laterally and 20–40 µm thick basally. Amphithecium with small crystals that dissolve rapidly in KOH (campestris-type). Parathecium hyaline, without crystals, 10–15 µm thick. Epihymenium reddish brown, with crystals soluble in KOH (chlarotera-type). Hymenium hyaline, 65–75 µm thick. Hypothecium and subhymenium hyaline. Paraphyses c. 1.5 µm wide, sparingly branched apically; apices not to slightly thickened, to c. 2.5 µm wide. Ascospores broadly ellipsoidal, 8.5–12.5 × 5.5–7.5 µm. CHEMISTRY: Thallus and apothecial margin K+ yellow, C+ faint orange, Pd+ yellowish orange; containing atranorin (major), 5,7-dichloro-3-O-methylnorlichexanthone (major), isoarthothelin (major), 3-O-methylasemone (major), 2,5,7-trichloro-3-O-methylnorlichexanthone (major), arthothelin (minor), asemone (minor), chloroatranorin (minor), 2,7-dichloronorliche-xanthone (minor), 5,7-dichloronorlichexanthone (minor) and 2,5,7-trichlorolichexanthone (minor).
  This saxicolous species grows on siliceous rocks in ±exposed situations in montane areas of eastern N.S.W. Also in the South Island, New Zealand.  
  Lumbsch & Elix (2004)  

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

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