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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
Hypogymnia tasmanica Elix
  in Elix & Jenkins, Mycotaxon 35: 470 (1989). T: along shore of Lake St Clair, Tas., 18 Jan. 1979, J.A.Elix 5643; holo: CANB; iso: MEL.  
  Thallus foliose, loosely adnate, orbicular to 8 cm wide or irregularly spreading, grey or grey with black margins, lines or patches. Lobes contiguous to subcontiguous centrally or throughout thallus, occasionally developing marginal, linear, di- or trichotomously branched lobes lacking lateral contacts, 2–4.5 mm wide, evenly inflated, hollow. Upper surface convex to ±flattened in older lobes, smooth, shiny, usually black-margined; esorediate. Medulla blackened adjacent to lobe cavity. Lower surface strongly wrinkled, eperforate, pale brown at apices. Apothecia common, evenly distributed, 1–7 mm wide, shortly pedicellate, not swollen basally; disc ±shiny, concave becoming undulate-distorted, red-brown to dark brown; thalline exciple entire, thin. Ascospores 7–9 × 4.5–5.5 µm. Pycnidia subglobose. Conidia bifusiform, 5.5–6.5 × 0.7 µm. CHEMISTRY: cortex K+ yellow; medulla K-, C-, KC+ rose, P-. Atranorin, chloroatranorin, physodic acid (major); oxyphysodic acid (minor); alectoronic acid (trace).
  Occurs on bark in Tas.  
  Elix (1992a)  

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

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