Orbilia subgenus Hemiorbilia series Aristata
 
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 Orbilia aristata,   | 
  
   
 Orbilia aristata,   | 
 
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 O. aristata (mediterranean form), France (Drôme), dry bark of Cercis
  siliquastrum 1-3 m above ground, leg./phot. G. Marson. 0.3-1.4 mm  | 
  
   
 O. aristata,   | 
 
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 Orbilia nanoaristata sp. nov., W-Australia, completely detached dry bark
  of Eucalyptus jacksonii hanging 2-4 m above ground, leg. G. Marson..
  0.4 mm (excl. teeth)      | 
  
   
 same as left  | 
 
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 O. spermoides sp. nov.,   | 
  
   
 O. spermoides sp. nov.,   | 
 
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 O. flagellispora,   | 
  
   
 O. flagellispora,   | 
 
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 O. subclavuliformis sp. nov.,   | 
  
   
 same as above  | 
 
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 O. triangulospora sp. nov., W-Australia, dry wood & bark of Chamaelaucium ciliatum, leg. G. Marson. 0.2-0.6 mm incl. teeth (?)  | 
  
   
 O. ?clavuliformis sp. nov., Austria (Oberösterreich), dry bark of Rhamnus
  frangula, leg. W. Dämon. 0.3-0.6 mm  | 
 
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 O. fimbriata sp. nov.,
  W-Australia, bark of ?Hakea, leg./phot.
  G. Marson. 0.4-1.5 mm  | 
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