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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 lacteola Müll.Arg.
  Bull. Herb. Boissier 1: 38 (1893). T: Camperdown, Vic., 1891, F.R.M.Wilson 353; holo: G.  
  Thallus thin, continuous or scattered-granular to verruculose, whitish grey to pale grey, epruinose. Soredia absent. Prothallus whitish grey. Apothecia sessile, 0.3–0.8 mm diam.; disc red-brown to olivaceous brown or greyish brown, faintly whitish grey-pruinose to epruinose; margin whitish grey, ±whitish-pruinose, thick, verrucose, crenulate. Cortex hyaline, distinct, gelatinous, inspersed with small crystals, 20–50 µm thick laterally and basally. Amphithecium lacking crystals, densely packed with algae; algal layer continuous below hymenium. Parathecium hyaline, lacking crystals. Epihymenium olivaceous brown to red-brown, c. 10 µm thick, with numerous small crystals insoluble in KOH. Hymenium and subhymenium hyaline. Hypothecium hyaline to yellowish brown. Paraphyses sparingly branched and thickened apically. Ascospores ellipsoidal, 6.5–10.0 × 4.0–5.5 µm. CHEMISTRY: Thallus and apothecial margin K–, C–, Pd–; containing an unknown pigment (major), arthothelin (trace) and asemone (trace).
  An endemic species on bark and wood in N.S.W., Vic. and Tas.  
  Lumbsch & Elix (2004)  

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

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