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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
     
     
Diploschistes sticticus (Körb.) Müll.Arg.
     
 

Bull. Herb. Boissier 2, App. 1: 52 (1894)

Urceolaria stictica Körb., Abh. Schles. Ges. Vaterl. Cult. Abth. Naturwiss. 40(2):32 (1863).

T: “Neuholland, comm. Hochstetter” [Australia]; lecto: M, fide H.T.Lumbsch & J.A.Elix, Pl. Syst. Evol. 167: 198 (1989).

 
     
  Thallus epilithic, to c. 1.4 mm thick, dark bluish grey to bluish brown or bronze-coloured, dull to glossy, smooth, rimose-areolate. Epinecral layer to c. 40 µm thick. Algal layer continuous, well developed; calcium oxalate crystals sparse, scattered, small. Vegetative propagules not seen. Ascomata conspicuous, blackish, to c. 0.75 mm diam., ±rounded, perithecioid, solitary, immersed. Disc not visible from above. Pores minute, to c. 0.1 mm diam., ±rounded; inner and apical proper exciple visible from above, free, black, epruinose. Thalline rim margin thin, ±rounded, concolorous with and having the same surface features as the thallus, immersed. Proper exciple free, thick, blackish brown, non-amyloid. Hymenium 120–160 µm thick, not inspersed, moderately conglutinated; lateral paraphyses conspicuous, to c. 30 µm long. Epihymenium hyaline to pale brown, egranulose. Asci 6–8-spored. Ascospores ellipsoidal, with subacute ends, brown, non-amyloid, 19–29 × 10–15 µm, with 4–6 × 1–2 locules; locules ±rounded to angular; septa thick, regular; ascospore wall thin to thick; endospore thick. Pycnidia not seen.
CHEMISTRY: Thallus K–, C+ red, P–; containing gyrophoric acid (major), orsellinic acid (minor), lecanoric acid (minor).
     
  Occurs on exposed, siliceous rocks in all States and the A.C.T.; subcosmopolitan.  
     
   
     
     
  Mangold et al. (2009)  

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