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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
Phyllopsora chodatinica Elix

Australas. Lichenol. 59: 23 (2006)

T: Blencoe Ck, Cardwell Ra., 48 km NW of Cardwell, Qld, 18°03’S, 145°39’E, on mossy trunk in Lauraceae-Syzygium-Prunus-dominated forest, 17 June 1986, J.A.Elix 20109 & H.Streimann; holo: BRI; iso: CANB.

  Thallus squamulose, effuse. Prothallus usually well developed, pale red-brown. Squamules 0.3–0.5 mm wide, ascending or not, elongate, to 1.0–1.5 mm long, often imbricate, incised to deeply divided, plane to weakly convex; upper side pale green to ±intense yellow-green or orange-yellow, glabrous, epruinose; margin concolorous with the upper surface, sometimes finely pubescent, lacking isidia. Lacinules common, growing from the squamule tips,
0.05–0.15 mm wide; lower surface partly yellow. Upper cortex of type 1, 25–60 µm thick. Apothecia rare, 0.8–1.5 mm wide, rounded or somewhat irregular at the margins, solitary to slightly conglomerate, weakly to moderately convex, reddish brown, with an indistinct darker margin. Proper exciple reddish brown. Epihymenium deep golden yellow. Hymenium pale yellow-brown. Hypothecium medium to dark red-brown. Ascospores simple, narrowly ellipsoidal, 7–11 × 2–3 μm. Pycnidia not seen.
CHEMISTRY: Cortex K+ pale yellow; medulla K+ pale yellow, C+ faint orange, KC–, P+ pale yellow; containing chodatin (major), 5,7-dichloro-3-O-methylnorlichexanthone (minor), 2,5,7-trichloro-3-O-methylnorlichexanthone (minor), di-O-methylthiophanic acid (minor), 3-O-methylthiophanic acid (trace), isoarthothelin (trace), ±demethylchodatin (trace).
  Endemic to eastern Qld and north-eastern N.S.W.; grows on the bark of montane rainforest trees at elevations of 800–1250 m.  
  Elix (2009h)  

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

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