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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 hypoconstictica (Elix & J.Johnst.) Elix
  Mycotaxon 87: 399 (2003)
Paraparmelia hypoconstictica Elix & J.Johnst., Brunonia 9: 144 (1987). T: Mt Timbeerwah [Tinbeerwah], 5 km west of Tewantin, Qld, 2 Sept. 1982, J.A.Elix 10411; holo: CANB.
  Thallus foliose, loosely to moderately adnate, to 10 cm wide. Lobes imbricate or not, subirregular, subirregularly to dichotomously branched, 1–3 mm wide; occasionally developing laciniae towards thallus centre, sublinear-elongate, dichotomously branched, 0.5–1 mm wide. Upper surface pale grey to dark grey, flat, very shiny towards lobe apices, becoming dull, emaculate, smooth, without soredia; lobe margins blackened at apices; isidia dense in thallus centre, scattered on marginal lobes, cylindrical, not inflated, becoming coralloid-branched, with apices syncorticate and intact. Lower surface shiny, rugulose, pale brown to chocolate-brown, often darker towards lobe apices; rhizines very sparse, simple, often tufted, robust, concolorous or darkening. Apothecia sessile to subpedicellate, to 5 mm wide; disc shallowly concave becoming undulate-distorted, pale brown to dark brown; thalline exciple thick and involute at first, isidiate, persistent. Ascospores 10–12 × 4–6 µm. Pycnidia not seen. CHEMISTRY: cortex K+ yellow; medulla K+ yellow then pale red, C-, P-; containing atranorin, hypoconstictic acid (major), hypostictic acid (trace) and ±hyposalazinic acid (trace).
  Locally common in southern Qld, this endemic species is found in open situations near the coast and in hinterland areas.  
  Elix (1994n)  

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

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