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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
Lepraria squamatica Elix

Australas. Lichenol. 58: 20 (2006)

T: Litchfield Natl Park, Tabletop Ra., 25 km SW of Batchelor, N.T., 13°11’S, 130°50’E, on charred wood in burnt Eucalyptus woodland, 2 July 1991, J.A.Elix 27513, H.T.Lumbsch & H.Streimann; holo: CANB.

  Thalluscrustose, leprose, creamy white, grey-white or pale yellow-grey, diffuse or delimited, forming extensive irregularly spreading patches to 10 cm wide, or in small irregularly rounded colonies 5–20 mm wide which eventually coalesce. Margin usually delimited, often with well-defined lobes 0.2–1.0 mm wide, raised at the margins. Soredia fine, dispersed or forming a thick continuous layer, ±globose, 15–40 μm wide, commonly aggregated in consoredia 150–200 μm wide, with long projecting hyphae along the margins (to 600 µm long); shorter projecting hyphae within (20–125 μm long). Medulla absent or patchy and white. Hyphae 1.5–3.0 μm thick. Lower surface not apparent.Photobiont cells ±spherical, 7–12 μm diam. Hypothallus thin and white or not apparent.
CHEMISTRY: Thallus K+ yellow, C–, KC–, P+ yellow, UV+ bright blue; containing squamatic acid (major), baeomycesic acid (major or minor), unknown fatty acid (major or minor), ±barbatic acid (trace), ±hypothamnolic acid (trace), ±subbaeomycesic acid (trace), ±subsquamatic acid (trace), ±protocetraric acid (trace).
  This endemic species occurs on the trunks of trees, on wood and on rocks in subtropical rainforest, monsoon forest and in open woodland at elevations of 60–1400 m in northern and eastern Australia (tropical W.A. and N.T. and eastern N.S.W.).  
  Elix (2009i)  

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

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