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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 macrospora Elix & J.Johnst.
  Mycotaxon 31: 491 (1988). T: near Kalgoorlie, W.A., Aug. 1982, M.F.Day; holo: CANB.  
  Thallus tightly adnate, to 2–5 cm wide. Lobes crowded, imbricate, subirregular, 1–2 mm wide; apices subrotund. Upper surface pale grey to leaden grey, smooth or sparsely pitted at first, becoming rugose, sometimes obscurely maculate around submarginal foveolae, lacking soredia, pustules and isidia; usually shiny and with granular white pruina towards lobe apices. Medulla buff. Lower surface ivory to pale brown, with pale brown marginal zone; rhizines moderately dense to dense, simple or tufted, concolorous. Apothecia common, sessile, 1–2 mm wide; disc concave, becoming flattened, epruinose, dark brown; thalline exciple densely pruinose. Ascospores elongated ellipsoidal, straight or commonly curved, 16–20 × 5–6 µm. Pycnidia numerous, immersed or slightly emergent. Conidia bacilliform to almost fusiform, commonly curved, 9–11 × 1 µm. CHEMISTRY: cortex K+ yellow; medulla K-, C-, KC-, P-; containing atranorin, chloroatranorin and scabrosin 4,4'-diacetate.
  A rare endemic species from southern inland W.A. Occurs on bark.  
  Elix (1994b)  

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

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