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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
Xanthoparmelia parvoclystoides Elix & J.Johnst.
  Mycotaxon 33: 360 (1988). T: 6.5 km west of Springton along the High Eden road, Mt Lofty Ranges, S.A., 20 May 1976, J.A.Elix 2252; holo: CANB.  
  Thallus small-foliose to ±subcrustose, very tightly adnate, to 5–7 cm wide. Lobes imbricate, sublinear-elongate, irregularly branched, 0.4–1 (–1.5) mm wide; marginal lobes flat. Upper surface yellow-green, darkening with age, dull, emaculate, lacking soredia and isidia; older lobes sometimes becoming rugulose, transversely or irregularly cracked and areolate; lobe apices often black-margined; areolae c. 0.5 mm wide. Medulla white. Lower surface pale tan to brown, often darkening to grey-black at lobe apices; rhizines moderately dense to dense, simple, slender, 0.1–0.2 mm long, brown. Apothecia sessile, 1–4 mm wide; disc concave then undulating, dark brown; thalline exciple smooth, thick, involute, becoming thinner and crenulate. Ascospores 8.5–10.5 × 4–6 µm. Pycnidia numerous. Conidia bifusiform, 5.5–7 × 1 µm. CHEMISTRY: cortex K-, UV-; medulla K+ yellow then dark red, C-, P+ yellow-orange; containing usnic acid, norstictic acid (major), connorstictic acid (minor), ±salazinic acid (minor) and ±atranorin (minor).
  Scattered, endemic, on rock in hinterland ranges of south-western W.A., southern S.A. and Qld.  
  Elix (1994z)  

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

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