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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
Canoparmelia pustulescens (Kurok.) Elix
  Mycotaxon 47: 127 (1993); Parmelia pustulescens Kurok. in M.E.Hale & S.Kurokawa, Contr. U.S. Natl Herb. 36: 156 (1964); Pseudoparmelia pustulescens (Kurok.) Hale, Phytologia 29: 191 (1974); Paraparmelia pustulescens (Kurok.) Elix & J.Johnst., Mycotaxon 27: 280 (1986). T: Vila Flor, Humbo, Angola, 18 Feb. 1960, G.Degelius; holo: herb. Degelius; iso: TNS, US.  
  Thallus adnate to tightly adnate, to 2–5 cm wide. Lobes moderately imbricate, sublinear to subirregular, 0.5–2 mm wide, apices often truncate. Upper surface whitish grey, flat, smooth or becoming rugulose, continuous or often becoming cracked with age, pustulate-isidiate; isidia coarse, short, cylindrical to irregularly inflated, bursting open apically and becoming coarsely sorediate. Medulla white. Lower surface black, with brown marginal zone; rhizines sparse, simple, black. Apothecia sessile, 1–2 mm wide; disc concave, dark brown; thalline exciple pustulate. Ascospores 7–9 × 4–5 µm. Pycnidia rare. Conidia weakly bifusiform, 5–6 × 1 µm. CHEMISTRY: cortex K+ yellow; medulla K-, C-, KC-, P-; containing atranorin, chloroatranorin, sekikaic acid (major), homosekikaic acid (minor) and fatty acids.
  Scattered on rock and, rarely, bark in drier hinterland areas of tropical Australia (N.T. and Qld); also occurs in Africa and India.  
  Elix (1994c)  

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

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