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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
     
     
Pertusaria ceylonica Müll.Arg.
     
  Flora 67: 351 (1884)
T: Ceylon [Sri Lanka], 1876, G.H.K.Thwaites; holo: G; iso: H-NYL.
 
     
  Thallus pale greenish grey, slightly areolate and cracked, smooth and glossy. Soredia and isidia absent. Apothecia numerous, verruciform, scattered or sometimes confluent, concolorous with the thallus, flattened-hemispherical, 0.4–0.6 mm diam. Ostioles black, punctiform, 1 (or 2) per verruca. Ascospores 3 (or 4) per ascus, uniseriate, ellipsoidal, smooth, (75–) 95–125 (–135) × 30–45 (–50) µm. CHEMISTRY: Thallus K+ weak yellow, KC–, C–, Pd+ weak yellow; containing stictic acid (major), 2,5-dichlorolichexanthone (major to minor), 2,4,5-trichlorolichexanthone (minor to trace), 2,4-dichlorolichexanthone (minor to trace), constictic acid (minor), ±4,5-dichloro-lichexanthone (minor) and 2-chlorolichexanthone (trace).
     
  A tropical to subtropical corticolous species in northern N.T. and north-eastern Qld. Also in Sri Lanka, Indonesia and Papua New Guinea.  
     
   
     
     
  Archer (2004b)  

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