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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
     
     
Trichothelium javanicum (F.Schill.) Vězda
     
  Nova Hedwigia 58: 139 (1994). T: Java, Indonesia, Busse 1760a; holo: GOET.  
     
  Thallus forming small round or irregular patches, pale greenish grey to medium green, smooth, matt; prothallus not apparent. Algae Phycopeltis; cells subglobose, angular-rounded or shortly rectangular, not forming radiating plates. Perithecia superficial, hemispherical to subglobose, 0.14–0.25 (–0.3) mm diam., black; setae 4–7 (–10), mostly narrowly to broadly acute, occasionally fin-shaped or bristle-like, straight or slightly curved or sinuous, usually predominantly black but with whitish tips or distal margins, rarely uniformly black, remaining discrete but sometimes intertwining and coalescing. Involucrellum purple-black or brown-black in thin section, contiguous with the exciple. Exciple c. 10 µm thick, brown-black. Asci elongate-cylindrical to elongate-fusiform, 68–100 × 10–13 µm. Ascospores oblong to elongate-fusiform, 3-septate, 16–30 × 3–5 µm; perispore not apparent. Pycnidia not seen in Australian specimens. Trichothelium javanicum map
     
  Occurs in eastern Qld, north-eastern N.S.W., Vic. and Tas. Foliicolous. Also known from Java, Christmas Is., Melanesia, Lord Howe Is. and New Zealand, where it has also been collected on semi-aquatic siliceous rocks  
     
   
     
     
  McCarthy (2001b)  

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