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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 roderickii (Elix & J.Johnst.) Elix
  Mycotaxon 87: 401 (2003)
Paraparmelia roderickii Elix & J.Johnst., Mycotaxon 32: 407 (1988). T: Mt French National Park near Boonah, Qld, 24 Oct. 1985, R.W.Rogers 8632; holo: MEL.
  Thallus foliose, adnate to tightly adnate, forming irregular patches to 10 cm wide. Lobes crowded and imbricate, flat, irregular to sublinear, irregularly branched, 1–3 mm wide; apices subrotund. Upper surface pale ash grey, flat, becoming dull, emaculate, smooth but developing transverse cracks, becoming rugose and occasionally areolate, lacking soredia and isidia; lobe apices shiny, black-margined. Lower surface black, brown-black at lobe apices; rhizines sparse to moderately dense, robust, simple, tufted or not, to 0.5 mm long, black. Apothecia sessile, to 5 mm wide; disc concave becoming ±flat or undulate, dark brown; thalline exciple thin, involute, becoming undulate. Ascospores spuriously monoseptate (containing oil droplets), 8–9 × 3.5–4.5 µm. Pycnidia minute, immersed, punctiform. Conidia 5.5–6.5 × 1–1.5 µm. CHEMISTRY: cortex K+ yellow; medulla K+ pale yellow-brown, C-, P+ brick red; containing atranorin, fumarprotocetraric acid (major), succinprotocetraric acid (trace) and protocetraric acid (trace).
  At present this rare endemic species is known only from the type locality in southern Qld.  
  Elix (1994n)  

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

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