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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
     
     
Porina minutissima Henssen, R.Lücking & Vĕzda
     
  in R.Lücking & A.Vĕzda, Willdenowia 28: 210 (1998). T: Atherton Tableland, Qld, Sept. 1983, A.Henssen 29401; holo: Herb. A.Henssen n.v.  
     
  Thallus epiphyllous, forming small patches or more extensive colonies, pale grey-green to yellowish grey, smooth, usually matt; prothallus not apparent. Algae Phycopeltis; cells ellipsoidal, angular or irregular, not forming radiating plates. Perithecial verrucae convex, hemispherical or wart-shaped, 0.2–0.3 (–0.35) mm diam., slightly reddish; wall containing a layer of colourless crystals; ostiole concolorous or a little darker; periostiolar area concolorous. Involucrellum apical and ±vestigial. Exciple c. 10 µm thick, pale yellowish brown. Asci narrowly obclavate, 60–70 × 9–12 µm. Ascospores usually bacilliform, or oblong or narrowly fusiform, 7-septate, 18–25 (–30) × 2–3.5 µm; perispore not apparent. Pycnidia not seen.
     
  Occurs in Christmas Is. and north-eastern Qld; grows on leaves of shrubs and trees in rainforest. Also in Malaysia, Vietnam, New Guinea and the Solomon Islands.  
     
   
     
     
  McCarthy (2001b)  

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