Orbilia subgenus Orbilia sectio Aurantiorubra
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 O. xanthoguttulata sp. nov., Spain (Málaga), dry bark & wood of Salix
  atrocinerea 1.6 m above ground, leg. F. Prieto & A. González. 0.4-1
  mm  | 
  
   
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 O. aurantiorubra,   | 
  
   
 O. comma,   | 
 
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 O. rubella, Sweden (Schonen), +/- dry bark of Ulmus, leg. H.G. Unger. 0.8-3 mm  | 
  
   
 O. rubella, Germany (Rhön), +/- dry bark of Ulmus, leg. L.G. Krieglsteiner. 0.6-1.8 mm  | 
 
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 O. suberis sp. nov.,   | 
  
   
 O. phragmotricha nom. nov., Luxembourg, dry bark of Salix
  x capreola 1.5-2 m above ground, leg. G. Marson & H.O. Baral.
  0.5-2 mm   | 
 
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 O. aradi sp. nov., Luxembourg, dry
  bark of Fagus 0.5-1.5 m above ground, leg. G. Marson. 0.25-0.8 mm  | 
  
   
 O. brachychiti sp. nov., W-Australia, dry bark of Brachychiton gregorii, leg. G. Marson. 0.5-1.2 mm  | 
 
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 O. abutilonis,   | 
  
   
 O. pilifera sp. nov.,   | 
 
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 O. pseudoaristata sp. nov.,   | 
  
   
 O. pseudoaristata sp. nov., Australia (NSW), dry bark of Salix
  babylonica 1-3 m above ground, leg. G. Marson. 0.3-0.5 mm  | 
 
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 O. albidorosea sp. nov.,  
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 O. denticulata sp. nov.,  
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