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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
Tephromela physodica Kalb & Elix

in K.Kalb, Sauteria 15: 245 (2008)

T: Kerry, Duck Creek Rd, near Lamington Natl Park, close to O’Reillys Mountains Resort, Qld, c. 850–950 m, on bark, 18 Aug. 1993, H.Mayrhofer 11380, E.Hierzer & R.Rogers; holo: CANB; iso: GZU.

  Thallus crustose, continuous or becoming rimose, areolate and rugulose with age, usually white, rarely pale grey, to 10 cm wide, 0.10–0.15 mm thick. Areolae angular to irregular, 0.3–1.0 mm wide, plane and smooth to weakly convex, lacking isidia and soredia. Prothallus black or not apparent. Apothecia common, scattered, sessile, constricted at the base, 1.0–2.5 mm wide; disc plane or ±undulate, round or irregular, glossy black, epruinose; thalline exciple prominent, persistent, smooth; proper exciple colourless, 100–200 µm thick. Epihymenium dark violet-brown. Hymenium violet to purple-brown, 150–200 µm thick. Hypothecium orange-brown to yellow-brown, 75–100 µm thick. Ascospores simple, broadly ellipsoidal to subglobose, 8–12 × 6.0–8.5 µm. Conidia filiform, straight, 8–12 × c. 1.5 µm.
CHEMISTRY: Cortex K+ yellow, C–, KC–, P– or P+ pale yellow; medulla K–, C–, KC+ pink, P–, UV+ blue-white; containing atranorin (minor), physodic acid (major), ±norcolensoic acid (trace), ±2’-O-methylphysodic acid (trace).
  A rare, endemic species in south-eastern Qld; grows on bark in hinterland rainforest.  
  Elix (2009j)  

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